🔎 I-ReadyGrade 5Reading: grades 5-6MultiplicationRoundingPlace valueSkip countingDivision
The Great Diagnostic Glitch
Someone has logged into the teacher dashboard and scrambled the learning pathways right before the Friday Diagnostic! We must identify the Glitch Avatar and restore our study streaks before the lab timer runs out.
Suspects
Possible suspects
Cross off a row as each clue rules it out. On screen, tap a row.
21 of 21 still in play
| Name | Cheat Code | System Setting | Mouse Setup | Avatar Hat | Tough Subject |
|---|---|---|---|---|---|
| Ryan | Streak Freeze | Dark Mode | Left Handed Mouse | Green Visor | Spelling Test |
| Plory | Streak Freeze | Speed Run | Right Handed Mouse | Green Visor | Hard Math |
| Sofia | Diagnostic Hacker | Double Coins | Right Handed Mouse | Blue Headphones | Hard Math |
| Snarg | Streak Freeze | Speed Run | Left Handed Mouse | Blue Headphones | Reading Quiz |
| Ava | Streak Freeze | Dark Mode | Right Handed Mouse | Orange Cap | Hard Math |
| Brandon | Lesson Skipper | Auto Jump | Left Handed Mouse | Green Visor | Reading Quiz |
| Lily | Avatar Cloner | Dark Mode | Left Handed Mouse | Green Visor | Reading Quiz |
| Daniel | Diagnostic Hacker | Muted Sound | Right Handed Mouse | Blue Headphones | Hard Math |
| Brooke | Streak Freeze | Speed Run | Right Handed Mouse | Green Visor | Spelling Test |
| Mason | Streak Freeze | Speed Run | Left Handed Mouse | Orange Cap | Spelling Test |
| Justin | Streak Freeze | Auto Jump | Right Handed Mouse | Green Visor | Spelling Test |
| Zoe | Streak Freeze | Speed Run | Right Handed Mouse | Blue Headphones | Hard Math |
| Tyler | Avatar Cloner | Auto Jump | Left Handed Mouse | Green Visor | Spelling Test |
| Yoop | Streak Freeze | Speed Run | Left Handed Mouse | Green Visor | Spelling Test |
| Alex | Streak Freeze | Dark Mode | Right Handed Mouse | Green Visor | Hard Math |
| Chloe | Coin Multiplier | Auto Jump | Right Handed Mouse | Orange Cap | Reading Quiz |
| Mia | Lesson Skipper | Speed Run | Left Handed Mouse | Green Visor | Spelling Test |
| Eli | Coin Multiplier | Muted Sound | Left Handed Mouse | Green Visor | Spelling Test |
| Grace | Lesson Skipper | Double Coins | Left Handed Mouse | Orange Cap | Spelling Test |
| Ella | Avatar Cloner | Speed Run | Right Handed Mouse | Green Visor | Reading Quiz |
| Sweet T | Diagnostic Hacker | Auto Jump | Right Handed Mouse | Blue Headphones | Spelling Test |
Clue 1
Multiplication facts (1-12)
Plory wants to count the total prize coins earned by the classes, but they are stacked in neat, even rows.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
144
90
63
35
22
11
11
14
22
18
100
64
63
30
18
64
T
144
6
30
63
21
6
T
144
63
100
30
64
6
18
100
12 × 12 =T
11 × 2 =I
10 × 10 =D
7 × 9 =E
3 × 2 =U
1 × 11 =L
8 × 8 =O
7 × 2 =A
7 × 5 =V
9 × 10 =H
3 × 10 =S
6 × 3 =N
7 × 3 =M
0/13 letters found
Clue 2
Rounding
The system administrator checks the lesson timer, which only displays the study time rounded to the nearest ten minutes.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
300
1700
700
1100
90
3700
1100
700
T
300
1700
90
3700
110
700
9000
T
300
1700
90
370
3700
700
3700
130
3000
7000
3700
1100
700
130
Round 315 to the nearest hundredT
Round 3,256 to the nearest thousandM
Round 112 to the nearest tenL
Round 368 to the nearest tenN
Round 1,147 to the nearest hundredG
Round 1,702 to the nearest hundredH
Round 736 to the nearest hundredE
Round 127 to the nearest tenS
Round 3,716 to the nearest hundredD
Round 8,600 to the nearest thousandF
Round 88 to the nearest tenA
Round 6,876 to the nearest thousandU
0/12 letters found
Clue 3
Place value
To unlock the secure server room, we must analyze the exact digit in the thousands place of the master computer passcode.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
A
20
3000
100
500
200
200
50
700
40
800
500
3000
800
3000
800
400
100
3000
800
80
500
600
90
400
200
8000
What is the value of the 2 in 377,720?A
What is the value of the 5 in 789,657?I
What is the value of the 9 in 113,498?C
What is the value of the 8 in 419,835?T
What is the value of the 8 in 65,180?H
What is the value of the 8 in 48,232?D
What is the value of the 4 in 652,427?O
What is the value of the 5 in 13,582?E
What is the value of the 3 in 93,414?S
What is the value of the 7 in 12,783?N
What is the value of the 4 in 67,540?G
What is the value of the 1 in 29,142?P
What is the value of the 2 in 83,296?L
What is the value of the 6 in 53,672?M
0/14 letters found
Clue 4
Skip counting
We trace the villain's path along the digital track by skip counting the glowing checkpoint nodes that light up at equal intervals.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
T
45
140
100
24
39
90
50
T
45
39
27
27
100
14
60
100
16
T
45
100
70
36
55
27
100
100
90
42
50
80
39
27
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110N
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65G
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70L
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33R
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70I
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100S
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28M
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48V
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18F
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160H
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20C
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45O
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42A
0/16 letters found
Clue 5
Division facts (1-12) — the last clue
The lab teacher wants to divide the leftover scratch paper packs equally among the active study group tables.
First solve each problem. Then find each answer in the list below and cross that sentence out. One sentence will be left — that's exactly what the villain did!
Step 1 — solve these
88 ÷ 8 = ?
66 ÷ 11 = ?
5 ÷ 1 = ?
8 ÷ 2 = ?
16 ÷ 8 = ?
96 ÷ 12 = ?
50 ÷ 5 = ?
6 ÷ 6 = ?
35 ÷ 5 = ?
72 ÷ 6 = ?
72 ÷ 8 = ?
Step 2 — cross out the sentence with each answer
1.The villain steals the streak tracker, then logs out of the system.
2.The villain hacks the diagnostic database, then reboots the computer lab.
3.The villain freezes the lesson pathway, then reboots the computer lab.
4.The villain freezes the lesson pathway, then deletes the student coins.
5.The villain hacks the diagnostic database, then locks the avatar customizer.
6.The villain freezes the lesson pathway, then locks the avatar customizer.
7.The villain hacks the diagnostic database, then logs out of the system.
8.The villain steals the streak tracker, then mutes the audio guide.
9.The villain jams the reward shop, then mutes the audio guide.
10.The villain freezes the lesson pathway, then logs out of the system.
11.The villain jams the reward shop, then logs out of the system.
12.The villain skips the tutorial video, then deletes the student coins.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Diagnostic Glitch
Culprit: Ryan (Streak Freeze · Dark Mode · Left Handed Mouse · Green Visor · Spelling Test)
- Clue 1 (Multiplication facts (1-12)): "THE VILLAIN DOES NOT USE MUTED SOUND"12 × 12 = 144 (T) · 11 × 2 = 22 (I) · 10 × 10 = 100 (D) · 7 × 9 = 63 (E) · 3 × 2 = 6 (U) · 1 × 11 = 11 (L) · 8 × 8 = 64 (O) · 7 × 2 = 14 (A) · 7 × 5 = 35 (V) · 9 × 10 = 90 (H) · 3 × 10 = 30 (S) · 6 × 3 = 18 (N) · 7 × 3 = 21 (M)
- Clue 2 (Rounding): "THE GADGET HAD LEFT HANDED SMUDGES"Round 315 to the nearest hundred = 300 (T) · Round 3,256 to the nearest thousand = 3000 (M) · Round 112 to the nearest ten = 110 (L) · Round 368 to the nearest ten = 370 (N) · Round 1,147 to the nearest hundred = 1100 (G) · Round 1,702 to the nearest hundred = 1700 (H) · Round 736 to the nearest hundred = 700 (E) · Round 127 to the nearest ten = 130 (S) · Round 3,716 to the nearest hundred = 3700 (D) · Round 8,600 to the nearest thousand = 9000 (F) · Round 88 to the nearest ten = 90 (A) · Round 6,876 to the nearest thousand = 7000 (U)
- Clue 3 (Place value): "A SPELLING TEST STOPS THEM COLD"What is the value of the 2 in 377,720? = 20 (A) · What is the value of the 5 in 789,657? = 50 (I) · What is the value of the 9 in 113,498? = 90 (C) · What is the value of the 8 in 419,835? = 800 (T) · What is the value of the 8 in 65,180? = 80 (H) · What is the value of the 8 in 48,232? = 8000 (D) · What is the value of the 4 in 652,427? = 400 (O) · What is the value of the 5 in 13,582? = 500 (E) · What is the value of the 3 in 93,414? = 3000 (S) · What is the value of the 7 in 12,783? = 700 (N) · What is the value of the 4 in 67,540? = 40 (G) · What is the value of the 1 in 29,142? = 100 (P) · What is the value of the 2 in 83,296? = 200 (L) · What is the value of the 6 in 53,672? = 600 (M)
- Clue 4 (Skip counting): "THE MONITOR REFLECTED A GREEN VISOR"Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, ___, 100, 110 = 90 (N) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, ___, 75, 80 = 70 (D) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (G) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, ___, 65, 70 = 60 (L) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, ___, 30, 33 = 27 (R) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, ___, 60, 70 = 50 (I) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (S) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, ___, 26, 28 = 24 (M) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (V) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (F) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (H) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, ___, 18, 20 = 16 (C) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ___, 42, 45 = 39 (O) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, ___, 39, 42 = 36 (A)
- Clue 5 (Division facts (1-12)): surviving statement (box 3) → Ryan88 ÷ 8 = 11 · 66 ÷ 11 = 6 · 5 ÷ 1 = 5 · 8 ÷ 2 = 4 · 16 ÷ 8 = 2 · 96 ÷ 12 = 8 · 50 ÷ 5 = 10 · 6 ÷ 6 = 1 · 35 ÷ 5 = 7 · 72 ÷ 6 = 12 · 72 ÷ 8 = 9
About this mystery
- Grade level
- Grade 5 math
- Math topics
- Multiplication, Rounding, Place value, Skip counting, Division
- Reading level
- grades 5-6
- Theme
- The Great Diagnostic Glitch — set in The I-Ready Learning Lab
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects