🤖 Robots, CatsGrade 7Reading: grades 3-4Place valueAdditionSubtractionMultiplicationTwo-step equations
The Case of the Glitched Kibble Vault
Oh no! A sneaky robo-cat has cracked the main vault. All the tuna-flavored circuits are gone! The Head Kitty Keeper needs our help. We must track down the glitched bot before they eat all the treats.
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 | Main Power | Extra Power | Dominant Paw | Fur Paint Color | Robot Weakness |
|---|---|---|---|---|---|
| Cyber | Yarn Ball Launcher | Turbo Purr Engine | Right-pawed | Neon Orange | Loud Dog Bark |
| Clawdia | Rocket Paws | Hover Ears | Left-pawed | Copper Gold | Water Sprays |
| Ziggy | Yarn Ball Launcher | Magnet Tail | Right-pawed | Copper Gold | Water Sprays |
| Mittens | Yarn Ball Launcher | Whiskers Radar | Right-pawed | Neon Orange | Water Sprays |
| Copper | Sonic Meow | Fish-shaped Solar Panels | Left-pawed | Metallic Silver | Water Sprays |
| Circuit | Sonic Meow | Hover Ears | Right-pawed | Metallic Silver | Water Sprays |
| Bolt | Rocket Paws | Magnet Tail | Right-pawed | Metallic Silver | Water Sprays |
| Sprocket | Sonic Meow | Hover Ears | Left-pawed | Neon Orange | Water Sprays |
| Byte | Laser Pointer Eyes | Whiskers Radar | Right-pawed | Metallic Silver | Water Sprays |
| Flicker | Yarn Ball Launcher | Whiskers Radar | Right-pawed | Neon Orange | Loud Dog Bark |
| Bubbles | Catnip Smoke Screen | Turbo Purr Engine | Right-pawed | Metallic Silver | Water Sprays |
| Rusty | Rocket Paws | Magnet Tail | Left-pawed | Metallic Silver | Reboot Button |
| Pixel | Yarn Ball Launcher | Magnet Tail | Right-pawed | Metallic Silver | Loud Dog Bark |
| Boots | Laser Pointer Eyes | Hover Ears | Left-pawed | Metallic Silver | Reboot Button |
| Whiskers | Yarn Ball Launcher | Hover Ears | Left-pawed | Copper Gold | Reboot Button |
| Gizmo | Rocket Paws | Turbo Purr Engine | Left-pawed | Neon Orange | Loud Dog Bark |
| Simba | Yarn Ball Launcher | Hover Ears | Left-pawed | Neon Orange | Loud Dog Bark |
| Waffles | Yarn Ball Launcher | Whiskers Radar | Right-pawed | Metallic Silver | Reboot Button |
| Gears | Yarn Ball Launcher | Magnet Tail | Left-pawed | Copper Gold | Reboot Button |
| Meowbot | Yarn Ball Launcher | Magnet Tail | Right-pawed | Metallic Silver | Reboot Button |
| Gizette | Rocket Paws | Fish-shaped Solar Panels | Right-pawed | Metallic Silver | Water Sprays |
Clue 1
Place value
The sanctuary radar screen is showing a big number. Let us look at the place value to read the secret code and open the first log.
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
8000
7000
50
T
8000
7000
300
50
1000
7000
700
800
4000
30
T
8000
400
900
600
30
60
400
900
900
50
4000
6000
300
4000
50
What is the value of the 8 in 458,412?T
What is the value of the 5 in 811,851?E
What is the value of the 3 in 20,239?O
What is the value of the 6 in 15,632?B
What is the value of the 9 in 61,933?R
What is the value of the 6 in 957,363?P
What is the value of the 7 in 17,201?H
What is the value of the 4 in 73,499?U
What is the value of the 4 in 974,728?N
What is the value of the 1 in 931,787?F
What is the value of the 8 in 79,847?S
What is the value of the 7 in 842,796?A
What is the value of the 6 in 76,052?G
What is the value of the 3 in 664,389?I
0/14 letters found
Clue 2
Addition
The helper bots found two piles of dropped scrap metal. We must add the piles together to see what they reveal.
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
3050
9096
7917
7553
7314
7553
3075
7917
8595
T
3050
7314
7553
7917
8980
T
3050
9096
7917
9483
8195
8195
9483
7345
9096
T
3050
3075
5966
3710
2131 + 919 =T
3907 + 3646 =S
1804 + 1906 =W
4683 + 4800 =I
3831 + 2135 =A
5494 + 2701 =R
3292 + 4022 =U
1713 + 1362 =P
4800 + 3117 =E
5475 + 3505 =D
4433 + 4663 =H
4326 + 3019 =G
5037 + 3558 =C
0/13 letters found
Clue 3
Subtraction
A box of toy mice was knocked over. Subtract the broken ones from the total to find out how many the thief took.
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
4936
5010
5187
5432
4720
5698
4720
T
4936
8272
7787
4847
7787
3709
5432
7787
3616
5096
4720
3709
8272
7787
T
4936
5187
5432
4847
6628
5432
7787
4823
4847
7071 - 2135 =T
11725 - 3453 =W
11276 - 3489 =A
8115 - 1487 =P
6290 - 1443 =S
7956 - 4247 =F
4825 - 2 =Y
9029 - 4309 =O
6491 - 793 =B
5998 - 566 =R
9780 - 4684 =D
7538 - 2351 =E
7428 - 2418 =H
8070 - 4454 =I
0/14 letters found
Clue 4
Multiplication facts (1-12)
The robo-cats are standing in neat rows. Multiply the rows to find the total and unlock the next file.
Solve each problem to learn its letter. Then write that letter in every box that shows the same number, and read the secret clue.
W
32
44
50
70
132
80
6
77
44
18
54
15
15
90
49
66
90
15
48
44
2
66
49
2
54
40
4 × 8 =W
2 × 1 =R
11 × 6 =S
10 × 9 =I
11 × 4 =E
12 × 11 =U
7 × 11 =M
9 × 6 =A
6 × 1 =D
5 × 10 =F
5 × 3 =L
12 × 4 =V
7 × 7 =C
7 × 10 =O
6 × 3 =T
8 × 10 =N
5 × 8 =P
0/17 letters found
Clue 5
Two-step equations — the last clue
We need to balance the energy scales. If we double the battery power and add five we will solve the equation and get the final clue.
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
2x + 7 = 17, x = ?
6x + 7 = 19, x = ?
5x + 7 = 37, x = ?
2x + 10 = 30, x = ?
4x + 12 = 56, x = ?
4x + 7 = 43, x = ?
2x + 5 = 21, x = ?
3x + 12 = 48, x = ?
6x + 10 = 34, x = ?
4x + 5 = 9, x = ?
3x + 3 = 12, x = ?
Step 2 — cross out the sentence with each answer
1.The villain shot a giant yarn ball launcher, then grabbed the vault keys with a magnet tail.
2.The villain shined laser pointer eyes at the wall, then scanned the halls with whiskers radar.
3.The villain boosted away on rocket paws, then sped away with a turbo purr engine.
4.The villain boosted away on rocket paws, then floated up using hover ears.
5.The villain boosted away on rocket paws, then charged up using fish-shaped solar panels.
6.The villain blasted a loud sonic meow, then floated up using hover ears.
7.The villain boosted away on rocket paws, then grabbed the vault keys with a magnet tail.
8.The villain shined laser pointer eyes at the wall, then grabbed the vault keys with a magnet tail.
9.The villain blew a catnip smoke screen, then sped away with a turbo purr engine.
10.The villain shot a giant yarn ball launcher, then floated up using hover ears.
11.The villain blew a catnip smoke screen, then charged up using fish-shaped solar panels.
12.The villain shined laser pointer eyes at the wall, then sped away with a turbo purr engine.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Case of the Glitched Kibble Vault
Culprit: Bolt (Rocket Paws · Magnet Tail · Right-pawed · Metallic Silver · Water Sprays)
- Clue 1 (Place value): "THE THIEF HAS NO TURBO PURR ENGINE"What is the value of the 8 in 458,412? = 8000 (T) · What is the value of the 5 in 811,851? = 50 (E) · What is the value of the 3 in 20,239? = 30 (O) · What is the value of the 6 in 15,632? = 600 (B) · What is the value of the 9 in 61,933? = 900 (R) · What is the value of the 6 in 957,363? = 60 (P) · What is the value of the 7 in 17,201? = 7000 (H) · What is the value of the 4 in 73,499? = 400 (U) · What is the value of the 4 in 974,728? = 4000 (N) · What is the value of the 1 in 931,787? = 1000 (F) · What is the value of the 8 in 79,847? = 800 (S) · What is the value of the 7 in 842,796? = 700 (A) · What is the value of the 6 in 76,052? = 6000 (G) · What is the value of the 3 in 664,389? = 300 (I)
- Clue 2 (Addition): "THE SUSPECT USED THEIR RIGHT PAW"2131 + 919 = 3050 (T) · 3907 + 3646 = 7553 (S) · 1804 + 1906 = 3710 (W) · 4683 + 4800 = 9483 (I) · 3831 + 2135 = 5966 (A) · 5494 + 2701 = 8195 (R) · 3292 + 4022 = 7314 (U) · 1713 + 1362 = 3075 (P) · 4800 + 3117 = 7917 (E) · 5475 + 3505 = 8980 (D) · 4433 + 4663 = 9096 (H) · 4326 + 3019 = 7345 (G) · 5037 + 3558 = 8595 (C)
- Clue 3 (Subtraction): "THE ROBOT WAS AFRAID OF WATER SPRAYS"7071 - 2135 = 4936 (T) · 11725 - 3453 = 8272 (W) · 11276 - 3489 = 7787 (A) · 8115 - 1487 = 6628 (P) · 6290 - 1443 = 4847 (S) · 7956 - 4247 = 3709 (F) · 4825 - 2 = 4823 (Y) · 9029 - 4309 = 4720 (O) · 6491 - 793 = 5698 (B) · 5998 - 566 = 5432 (R) · 9780 - 4684 = 5096 (D) · 7538 - 2351 = 5187 (E) · 7428 - 2418 = 5010 (H) · 8070 - 4454 = 3616 (I)
- Clue 4 (Multiplication facts (1-12)): "WE FOUND METALLIC SILVER SCRAP"4 × 8 = 32 (W) · 2 × 1 = 2 (R) · 11 × 6 = 66 (S) · 10 × 9 = 90 (I) · 11 × 4 = 44 (E) · 12 × 11 = 132 (U) · 7 × 11 = 77 (M) · 9 × 6 = 54 (A) · 6 × 1 = 6 (D) · 5 × 10 = 50 (F) · 5 × 3 = 15 (L) · 12 × 4 = 48 (V) · 7 × 7 = 49 (C) · 7 × 10 = 70 (O) · 6 × 3 = 18 (T) · 8 × 10 = 80 (N) · 5 × 8 = 40 (P)
- Clue 5 (Two-step equations): surviving statement (box 7) → Bolt2x + 7 = 17, x = 5 · 6x + 7 = 19, x = 2 · 5x + 7 = 37, x = 6 · 2x + 10 = 30, x = 10 · 4x + 12 = 56, x = 11 · 4x + 7 = 43, x = 9 · 2x + 5 = 21, x = 8 · 3x + 12 = 48, x = 12 · 6x + 10 = 34, x = 4 · 4x + 5 = 9, x = 1 · 3x + 3 = 12, x = 3
About this mystery
- Grade level
- Grade 7 math
- Math topics
- Place value, Addition, Subtraction, Multiplication, Two-step equations
- Reading level
- grades 3-4
- Theme
- The Case of the Glitched Kibble Vault — set in Meow-Byte Space Sanctuary
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects