🏎️ CarsGrade 1Reading: grades 1-2AdditionSubtractionSkip countingPlace valueMissing addends
The Great Garage Mystery
A sneaky rogue racer took the Golden Wrench. The Head Mechanic needs your help. Look at the tracks, count the gears, and find the speedy suspect.
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 | Engine Type | Spoiler Style | Steering Grip | Helmet Color | Track Hazard |
|---|---|---|---|---|---|
| Dale | Electric Hum | Ducktail Fin | Right Hand Grip | Green Helmet | Sticky Tar |
| Mario | V8 Roar | Wing Spoiler | Left Hand Grip | Blue Helmet | Slippery Oil |
| Ayrton | Electric Hum | Active Wing | Left Hand Grip | Green Helmet | Sharp Rocks |
| Lightning | Super Charger | No Spoiler | Left Hand Grip | Red Helmet | Sharp Rocks |
| Sally | Super Charger | Wing Spoiler | Right Hand Grip | Green Helmet | Sharp Rocks |
| Sebastian | V8 Roar | Active Wing | Left Hand Grip | Red Helmet | Sticky Tar |
| Rusty | Turbo Whistle | No Spoiler | Left Hand Grip | Blue Helmet | Sharp Rocks |
| Shelby | Turbo Whistle | Carbon Lip | Right Hand Grip | Red Helmet | Sticky Tar |
| Bubba | Eco Purr | Active Wing | Right Hand Grip | Green Helmet | Sharp Rocks |
| Alain | Turbo Whistle | Carbon Lip | Left Hand Grip | Blue Helmet | Sticky Tar |
| Dan | Electric Hum | Active Wing | Right Hand Grip | Red Helmet | Slippery Oil |
| Max | Turbo Whistle | Ducktail Fin | Right Hand Grip | Blue Helmet | Sharp Rocks |
| Bobby | Super Charger | Active Wing | Left Hand Grip | Green Helmet | Slippery Oil |
| Danica | Electric Hum | Carbon Lip | Left Hand Grip | Red Helmet | Sticky Tar |
| Cruz | Electric Hum | Active Wing | Left Hand Grip | Blue Helmet | Sharp Rocks |
| Carlos | Turbo Whistle | No Spoiler | Left Hand Grip | Green Helmet | Sticky Tar |
| Jimmie | Eco Purr | No Spoiler | Left Hand Grip | Green Helmet | Sharp Rocks |
| Richard | Turbo Whistle | Ducktail Fin | Left Hand Grip | Blue Helmet | Sharp Rocks |
| Lewis | Turbo Whistle | Carbon Lip | Left Hand Grip | Blue Helmet | Sharp Rocks |
| Jeff | Super Charger | Carbon Lip | Right Hand Grip | Red Helmet | Sharp Rocks |
| Lando | Super Charger | Wing Spoiler | Left Hand Grip | Blue Helmet | Sharp Rocks |
Clue 1
Addition
The pit crew counts the spare tires. We add the front tires and back tires. This total tells us which garage to check.
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
15
10
4
6
3
8
4
6
13
14
12
4
4
12
10
3
20
3
20
18
9
13
7
4
6
5 + 10 =T
6 + 3 =O
10 + 8 =P
3 + 4 =L
5 + 5 =H
1 + 5 =R
2 + 2 =E
14 + 6 =S
7 + 7 =N
4 + 4 =C
2 + 1 =A
3 + 9 =D
3 + 10 =I
0/13 letters found
Clue 2
Subtraction
We had ten cans of fuel. Now we have fewer. We subtract the used cans to find how much fuel the runaway car 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
4
6
8
18
T
4
8
8
12
2
19
15
14
6
8
8
3
6
5
13
1
19
3
11
3
8
9
T
4
6
5
19
13
16
5
12
10
18
5 - 1 =T
12 - 3 =F
11 - 3 =E
16 - 3 =D
17 - 6 =Y
19 - 7 =R
5 - 4 =O
18 - 8 =K
17 - 3 =W
7 - 5 =I
6 - 1 =A
20 - 2 =S
20 - 1 =N
14 - 8 =H
7 - 4 =L
19 - 3 =M
18 - 3 =G
0/17 letters found
Clue 3
Skip counting
Let us count the cones on the track. We count them by twos. This skip counting shows us where the car skidded.
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
33
55
80
T
33
65
12
80
20
120
42
120
120
80
110
42
130
T
33
55
80
20
55
6
12
120
12
42
45
8
20
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39T
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140P
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75Y
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150N
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100E
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48O
Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30S
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130D
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55C
Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10A
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65H
Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18R
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12K
0/13 letters found
Clue 4
Place value
Look at the giant scoreboard. It has tens and ones. The place value numbers show the lap time of our suspect.
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
61
36
85
85
62
28
62
99
14
65
14
62
44
14
70
75
62
A
61
63
65
14
45
28
56
70
65
14
75
77
49
77
63
65
What number has 6 tens and 1 one?A
What number has 1 ten and 4 ones?E
What number has 8 tens and 5 ones?O
What number has 4 tens and 4 ones?M
What number has 4 tens and 5 ones?D
What number has 6 tens and 2 ones?L
What number has 3 tens and 6 ones?C
What number has 5 tens and 6 ones?Y
What number has 9 tens and 9 ones?U
What number has 4 tens and 9 ones?N
What number has 6 tens and 3 ones?S
What number has 7 tens and 0 ones?T
What number has 6 tens and 5 ones?H
What number has 2 tens and 8 ones?B
What number has 7 tens and 7 ones?I
What number has 7 tens and 5 ones?F
0/16 letters found
Clue 5
Missing addends — the last clue
We need eight heavy metal bolts to fix the gate. We only have five. Finding the missing number opens the door.
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
7 + ___ = 13
1 + ___ = 9
5 + ___ = 17
10 + ___ = 15
7 + ___ = 9
4 + ___ = 14
7 + ___ = 14
7 + ___ = 18
9 + ___ = 12
2 + ___ = 11
2 + ___ = 6
Step 2 — cross out the sentence with each answer
1.The villain revved a loud engine, then grabbed the master key to the garage.
2.The villain sped through the pit lane, then hid the winner trophy.
3.The villain revved a loud engine, then stole the shiny golden wrench.
4.The villain zoomed past the checkered flag, then grabbed the master key to the garage.
5.The villain zoomed past the checkered flag, then carried away the special fuel can.
6.The villain sped through the pit lane, then stole the shiny golden wrench.
7.The villain drifts across the starting line, then stole the shiny golden wrench.
8.The villain skidded around the hairpin turn, then hid the winner trophy.
9.The villain drifts across the starting line, then grabbed the master key to the garage.
10.The villain sped through the pit lane, then grabbed the master key to the garage.
11.The villain zoomed past the checkered flag, then stole the shiny golden wrench.
12.The villain skidded around the hairpin turn, then took the secret map of the track.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Garage Mystery
Culprit: Cruz (Electric Hum · Active Wing · Left Hand Grip · Blue Helmet · Sharp Rocks)
- Clue 1 (Addition): "THE RACER INDEED HAS A SPOILER"5 + 10 = 15 (T) · 6 + 3 = 9 (O) · 10 + 8 = 18 (P) · 3 + 4 = 7 (L) · 5 + 5 = 10 (H) · 1 + 5 = 6 (R) · 2 + 2 = 4 (E) · 14 + 6 = 20 (S) · 7 + 7 = 14 (N) · 4 + 4 = 8 (C) · 2 + 1 = 3 (A) · 3 + 9 = 12 (D) · 3 + 10 = 13 (I)
- Clue 2 (Subtraction): "THE STEERING WHEEL HAD ONLY LEFT HAND MARKS"5 - 1 = 4 (T) · 12 - 3 = 9 (F) · 11 - 3 = 8 (E) · 16 - 3 = 13 (D) · 17 - 6 = 11 (Y) · 19 - 7 = 12 (R) · 5 - 4 = 1 (O) · 18 - 8 = 10 (K) · 17 - 3 = 14 (W) · 7 - 5 = 2 (I) · 6 - 1 = 5 (A) · 20 - 2 = 18 (S) · 20 - 1 = 19 (N) · 14 - 8 = 6 (H) · 7 - 4 = 3 (L) · 19 - 3 = 16 (M) · 18 - 3 = 15 (G)
- Clue 3 (Skip counting): "THE TYRES POPPED ON THE SHARP ROCKS"Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (T) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (P) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ___, 70, 75 = 65 (Y) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ___, 140, 150 = 130 (N) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, ___, 90, 100 = 80 (E) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, ___, 45, 48 = 42 (O) · Skip-count by 5s. Fill the blank: 5, 10, 15, ___, 25, 30 = 20 (S) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ___, 120, 130 = 110 (D) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (C) · Skip-count by 2s. Fill the blank: 2, 4, ___, 8, 10 = 6 (A) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (H) · Skip-count by 3s. Fill the blank: 3, 6, 9, ___, 15, 18 = 12 (R) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (K)
- Clue 4 (Place value): "A COOL BLUE HELMET FLASHED BY THE FINISH"What number has 6 tens and 1 one? = 61 (A) · What number has 1 ten and 4 ones? = 14 (E) · What number has 8 tens and 5 ones? = 85 (O) · What number has 4 tens and 4 ones? = 44 (M) · What number has 4 tens and 5 ones? = 45 (D) · What number has 6 tens and 2 ones? = 62 (L) · What number has 3 tens and 6 ones? = 36 (C) · What number has 5 tens and 6 ones? = 56 (Y) · What number has 9 tens and 9 ones? = 99 (U) · What number has 4 tens and 9 ones? = 49 (N) · What number has 6 tens and 3 ones? = 63 (S) · What number has 7 tens and 0 ones? = 70 (T) · What number has 6 tens and 5 ones? = 65 (H) · What number has 2 tens and 8 ones? = 28 (B) · What number has 7 tens and 7 ones? = 77 (I) · What number has 7 tens and 5 ones? = 75 (F)
- Clue 5 (Missing addends): surviving statement (box 1) → Cruz7 + ___ = 13 = 6 · 1 + ___ = 9 = 8 · 5 + ___ = 17 = 12 · 10 + ___ = 15 = 5 · 7 + ___ = 9 = 2 · 4 + ___ = 14 = 10 · 7 + ___ = 14 = 7 · 7 + ___ = 18 = 11 · 9 + ___ = 12 = 3 · 2 + ___ = 11 = 9 · 2 + ___ = 6 = 4
About this mystery
- Grade level
- Grade 1 math
- Math topics
- Addition, Subtraction, Skip counting, Place value, Missing addends
- Reading level
- grades 1-2
- Theme
- The Great Garage Mystery — set in The Great Gear Valley Racetrack
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects