🤖 Cats, RobotsGrade 4Reading: grades 3-4AdditionSubtractionRoundingMultiplicationDivision
The Great Robo-Cat Heist
A sneaky mechanical cat has stolen the Golden Scratching Post! Detective Whiskers needs your help to scan the circuits, follow the metal paw prints, and catch the right robot.
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 Ability | Special Upgrade | Laser Pointer | Metal Plating | Foil Tool |
|---|---|---|---|---|---|
| Mittens | laser beam | spring ears | green laser beam | shiny chrome | strong magnet |
| Carbon | holo tail | mouse radar | green laser beam | matte carbon | strong magnet |
| Micro | sonic purr | iron teeth | green laser beam | shiny chrome | strong magnet |
| Socks | sonic purr | iron teeth | red laser beam | matte carbon | spray of water |
| Felix | rocket jump | iron teeth | green laser beam | matte carbon | spray of water |
| Gizmo | rocket jump | solar tail | green laser beam | matte carbon | spray of water |
| Chrome | laser beam | solar tail | red laser beam | shiny chrome | strong magnet |
| Sonic | laser beam | solar tail | green laser beam | matte carbon | spray of water |
| Sprocket | turbo speed | mouse radar | green laser beam | matte carbon | ball of yarn |
| Cyber | laser beam | solar tail | red laser beam | shiny chrome | spray of water |
| Rocket | laser beam | spring ears | green laser beam | copper bronze | spray of water |
| Bolt | rocket jump | iron teeth | green laser beam | copper bronze | spray of water |
| Gearbox | rocket jump | mouse radar | green laser beam | matte carbon | spray of water |
| Pixel | rocket jump | hover paws | red laser beam | matte carbon | spray of water |
| Sparky | rocket jump | spring ears | green laser beam | matte carbon | spray of water |
| Turbo | holo tail | iron teeth | green laser beam | shiny chrome | spray of water |
| Circuit | sonic purr | mouse radar | red laser beam | shiny chrome | ball of yarn |
| Byte | sonic purr | spring ears | green laser beam | shiny chrome | spray of water |
| Hover | laser beam | iron teeth | green laser beam | copper bronze | ball of yarn |
| Widget | holo tail | mouse radar | red laser beam | shiny chrome | strong magnet |
| Whiskers | laser beam | hover paws | green laser beam | matte carbon | spray of water |
Clue 1
Addition
Inspector Bolt counts the spare battery packs left in the workshop to find the first clue.
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
3479
6646
6612
6085
9254
6089
6728
7295
6867
T
3479
2524
2112
6612
9682
4980
2112
T
3479
9254
9682
6612
8710
9682
2112
6089
8710
7295
T
3479
8710
6867
6089
2006 + 1473 =T
948 + 1576 =D
1335 + 777 =O
4519 + 2093 =E
5480 + 4202 =S
2892 + 3754 =H
3373 + 1607 =N
3263 + 3604 =I
3337 + 3958 =R
2449 + 4279 =P
4630 + 4080 =A
3407 + 2682 =L
3602 + 5652 =U
3897 + 2188 =C
0/14 letters found
Clue 2
Subtraction
The security guard subtracts the used oil cans from the total supply to see how much 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
1829
8723
2790
3476
3360
7233
7233
8415
8723
3360
7628
7362
4266
2790
2790
7312
7233
3360
8415
2790
4266
8839
3360
4266
1024
8415
6254 - 4425 =T
10645 - 3333 =N
8916 - 4650 =R
6460 - 2984 =W
12266 - 3427 =M
8824 - 1196 =D
9566 - 1151 =S
5084 - 4060 =K
3623 - 833 =E
4383 - 1023 =A
8827 - 104 =H
8391 - 1029 =G
8002 - 769 =L
0/13 letters found
Clue 3
Rounding
The radar sensor only shows rounded numbers of volts but it is enough to track the escape route.
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
5000
50
4300
9000
A
5000
110
370
2000
20
A
5000
200
230
9000
500
A
5000
2300
230
200
290
230
500
9000
1700
50
200
Round 5,475 to the nearest thousandA
Round 291 to the nearest tenH
Round 112 to the nearest tenY
Round 9,277 to the nearest thousandR
Round 2,297 to the nearest hundredD
Round 211 to the nearest hundredT
Round 1,598 to the nearest thousandF
Round 52 to the nearest tenS
Round 229 to the nearest tenE
Round 21 to the nearest tenW
Round 368 to the nearest tenO
Round 509 to the nearest hundredM
Round 1,717 to the nearest hundredU
Round 4,344 to the nearest hundredP
0/14 letters found
Clue 4
Multiplication facts (1-12)
To crack the keypad we multiply the rows of glowing cat buttons on the locked control panel.
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
84
90
99
25
64
80
32
18
2
44
44
90
77
2
20
108
25
80
32
64
120
44
7 × 12 =W
8 × 4 =D
1 × 2 =A
4 × 5 =R
8 × 8 =U
5 × 5 =O
10 × 12 =S
8 × 10 =N
11 × 9 =F
11 × 4 =T
6 × 3 =M
11 × 7 =C
9 × 12 =B
10 × 9 =E
0/14 letters found
Clue 5
Division facts (1-12) — the last clue
We divide the microchips equally among the patrol bots so they can search the dark alleys.
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
16 ÷ 8 = ?
66 ÷ 6 = ?
77 ÷ 11 = ?
24 ÷ 6 = ?
48 ÷ 8 = ?
63 ÷ 7 = ?
25 ÷ 5 = ?
18 ÷ 6 = ?
96 ÷ 12 = ?
10 ÷ 1 = ?
7 ÷ 7 = ?
Step 2 — cross out the sentence with each answer
1.The villain fired a glowing energy beam, then chewed through the heavy metal cage.
2.The villain leaped onto the high roof, then bounced over the high laser gate.
3.The villain emitted a loud high pitch purr, then tracked down the target item.
4.The villain dashed past the security cameras, then tracked down the target item.
5.The villain dashed past the security cameras, then recharged in the bright sunlight.
6.The villain made a distraction with light, then tracked down the target item.
7.The villain leaped onto the high roof, then chewed through the heavy metal cage.
8.The villain emitted a loud high pitch purr, then recharged in the bright sunlight.
9.The villain emitted a loud high pitch purr, then chewed through the heavy metal cage.
10.The villain made a distraction with light, then bounced over the high laser gate.
11.The villain fired a glowing energy beam, then floated over the pressure plates.
12.The villain leaped onto the high roof, then tracked down the target item.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Robo-Cat Heist
Culprit: Gearbox (rocket jump · mouse radar · green laser beam · matte carbon · spray of water)
- Clue 1 (Addition): "THE CULPRIT DOES NOT USE A SOLAR TAIL"2006 + 1473 = 3479 (T) · 948 + 1576 = 2524 (D) · 1335 + 777 = 2112 (O) · 4519 + 2093 = 6612 (E) · 5480 + 4202 = 9682 (S) · 2892 + 3754 = 6646 (H) · 3373 + 1607 = 4980 (N) · 3263 + 3604 = 6867 (I) · 3337 + 3958 = 7295 (R) · 2449 + 4279 = 6728 (P) · 4630 + 4080 = 8710 (A) · 3407 + 2682 = 6089 (L) · 3602 + 5652 = 9254 (U) · 3897 + 2188 = 6085 (C)
- Clue 2 (Subtraction): "THE WALLS HAD GREEN LASER MARKS"6254 - 4425 = 1829 (T) · 10645 - 3333 = 7312 (N) · 8916 - 4650 = 4266 (R) · 6460 - 2984 = 3476 (W) · 12266 - 3427 = 8839 (M) · 8824 - 1196 = 7628 (D) · 9566 - 1151 = 8415 (S) · 5084 - 4060 = 1024 (K) · 3623 - 833 = 2790 (E) · 4383 - 1023 = 3360 (A) · 8827 - 104 = 8723 (H) · 8391 - 1029 = 7362 (G) · 8002 - 769 = 7233 (L)
- Clue 3 (Rounding): "A SPRAY OF WATER MADE THEM RUST"Round 5,475 to the nearest thousand = 5000 (A) · Round 291 to the nearest ten = 290 (H) · Round 112 to the nearest ten = 110 (Y) · Round 9,277 to the nearest thousand = 9000 (R) · Round 2,297 to the nearest hundred = 2300 (D) · Round 211 to the nearest hundred = 200 (T) · Round 1,598 to the nearest thousand = 2000 (F) · Round 52 to the nearest ten = 50 (S) · Round 229 to the nearest ten = 230 (E) · Round 21 to the nearest ten = 20 (W) · Round 368 to the nearest ten = 370 (O) · Round 509 to the nearest hundred = 500 (M) · Round 1,717 to the nearest hundred = 1700 (U) · Round 4,344 to the nearest hundred = 4300 (P)
- Clue 4 (Multiplication facts (1-12)): "WE FOUND MATTE CARBON DUST"7 × 12 = 84 (W) · 8 × 4 = 32 (D) · 1 × 2 = 2 (A) · 4 × 5 = 20 (R) · 8 × 8 = 64 (U) · 5 × 5 = 25 (O) · 10 × 12 = 120 (S) · 8 × 10 = 80 (N) · 11 × 9 = 99 (F) · 11 × 4 = 44 (T) · 6 × 3 = 18 (M) · 11 × 7 = 77 (C) · 9 × 12 = 108 (B) · 10 × 9 = 90 (E)
- Clue 5 (Division facts (1-12)): surviving statement (box 12) → Gearbox16 ÷ 8 = 2 · 66 ÷ 6 = 11 · 77 ÷ 11 = 7 · 24 ÷ 6 = 4 · 48 ÷ 8 = 6 · 63 ÷ 7 = 9 · 25 ÷ 5 = 5 · 18 ÷ 6 = 3 · 96 ÷ 12 = 8 · 10 ÷ 1 = 10 · 7 ÷ 7 = 1
About this mystery
- Grade level
- Grade 4 math
- Math topics
- Addition, Subtraction, Rounding, Multiplication, Division
- Reading level
- grades 3-4
- Theme
- The Great Robo-Cat Heist — set in Neon Kitty City
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects