🤖 RobotsGrade 2Reading: grades 1-2Place valueAdditionSubtractionSkip countingMissing addends
The Great Toy Factory Mix-Up
A wild rogue bot has escaped the assembly line! It took the golden key to the main toy chest. The head toy maker needs your help to scan the bots and find the runaway thief before bedtime.
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 | primary tool | bonus gadget | frame build | head sensor | software glitch |
|---|---|---|---|---|---|
| Copper | drill nose | siren light | square chassis | spiral antenna | low battery |
| Bolt | laser welder | bubble blower | round chassis | spiral antenna | low battery |
| Widget | grabber claw | siren light | square chassis | spiral antenna | rusty gear |
| Gizmo | jet nozzle | siren light | round chassis | flashing bulb | low battery |
| Rusty | magnet crane | propeller hat | round chassis | solar panel | low battery |
| Beep | jet nozzle | siren light | round chassis | spiral antenna | rusty gear |
| Gazer | drill nose | bubble blower | square chassis | solar panel | rusty gear |
| Turbo | grabber claw | oil squirter | round chassis | solar panel | rusty gear |
| Sparky | laser welder | propeller hat | round chassis | spiral antenna | static shock |
| Tink | laser welder | oil squirter | square chassis | solar panel | low battery |
| Solder | magnet crane | oil squirter | round chassis | spiral antenna | rusty gear |
| Radar | jet nozzle | siren light | square chassis | solar panel | rusty gear |
| Otto | grabber claw | bubble blower | round chassis | spiral antenna | static shock |
| Boop | grabber claw | confetti shooter | square chassis | solar panel | rusty gear |
| Pixel | drill nose | oil squirter | round chassis | flashing bulb | rusty gear |
| Sprocket | magnet crane | propeller hat | square chassis | solar panel | rusty gear |
| Click | grabber claw | siren light | square chassis | solar panel | rusty gear |
| Flux | grabber claw | siren light | square chassis | flashing bulb | rusty gear |
| Geary | jet nozzle | propeller hat | square chassis | solar panel | static shock |
| Bitty | magnet crane | oil squirter | square chassis | solar panel | low battery |
| Zap | grabber claw | confetti shooter | square chassis | spiral antenna | static shock |
Clue 1
Place value (tens & ones)
The security screen has a tens slot and a ones slot. Put the correct numbers in each slot to read 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
31
17
84
T
31
17
58
84
41
17
66
87
34
80
20
85
20
20
75
84
20
75
80
26
84
71
What number has 3 tens and 1 one?T
What number has 4 tens and 1 one?F
What number has 8 tens and 7 ones?S
What number has 1 ten and 7 ones?H
What number has 2 tens and 0 ones?B
What number has 3 tens and 4 ones?N
What number has 6 tens and 6 ones?A
What number has 7 tens and 1 one?R
What number has 7 tens and 5 ones?L
What number has 8 tens and 4 ones?E
What number has 8 tens and 0 ones?O
What number has 5 tens and 8 ones?I
What number has 8 tens and 5 ones?U
What number has 2 tens and 6 ones?W
0/14 letters found
Clue 2
Addition
We found two piles of dropped screws on the rug. Add them together to see what the second clue is.
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
37
67
39
22
75
T
37
67
42
87
42
87
68
62
42
31
39
22
75
95
63
17 + 20 =T
42 + 45 =S
11 + 28 =E
65 + 30 =D
23 + 44 =H
27 + 48 =O
9 + 13 =B
29 + 13 =A
22 + 9 =R
32 + 30 =U
33 + 30 =Y
23 + 45 =Q
0/12 letters found
Clue 3
Subtraction
The runaway bot started with a full power pack, but lost some juice. Take away the used power to find the third 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.
A
53
28
57
60
37
54
68
19
A
53
28
60
34
63
49
60
37
85
19
20
35
63
49
48
81 - 28 =A
64 - 27 =T
78 - 21 =U
93 - 8 =H
28 - 8 =M
61 - 33 =R
94 - 31 =O
61 - 1 =S
88 - 40 =N
85 - 36 =W
50 - 16 =L
54 - 35 =E
52 - 17 =D
73 - 19 =Y
107 - 39 =G
0/15 letters found
Clue 4
Skip counting
There are tracks left on the dusty floor. Count the tread marks by twos to reach the fourth 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.
A
40
45
120
60
A
40
140
28
A
40
8
55
60
45
14
100
8
55
45
120
8
33
120
28
Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60A
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65E
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140O
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120I
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32P
Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39T
Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18H
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80L
Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55S
Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12N
Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160R
0/11 letters found
Clue 5
Missing addends — the last clue
The backup generator needs ten fuses to work, but we only have six. Find how many more we need to unlock 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
6 + ___ = 7
6 + ___ = 10
4 + ___ = 15
5 + ___ = 10
3 + ___ = 6
2 + ___ = 4
5 + ___ = 12
10 + ___ = 16
4 + ___ = 16
6 + ___ = 14
5 + ___ = 15
Step 2 — cross out the sentence with each answer
1.The villain blasts air from a jet nozzle, then flashes a bright red siren light.
2.The villain fires up a glowing laser welder, then blasts paper dots using a confetti shooter.
3.The villain reaches out with a grabber claw, then flies off using a spinning propeller hat.
4.The villain reaches out with a grabber claw, then blasts paper dots using a confetti shooter.
5.The villain reaches out with a grabber claw, then puffs soapy suds with a bubble blower.
6.The villain swings a heavy magnet crane, then flashes a bright red siren light.
7.The villain swings a heavy magnet crane, then sprays slippery lube from an oil squirter.
8.The villain swings a heavy magnet crane, then puffs soapy suds with a bubble blower.
9.The villain swings a heavy magnet crane, then flies off using a spinning propeller hat.
10.The villain blasts air from a jet nozzle, then flies off using a spinning propeller hat.
11.The villain reaches out with a grabber claw, then flashes a bright red siren light.
12.The villain reaches out with a grabber claw, then sprays slippery lube from an oil squirter.
Solve it
Name the culprit
Choose the one suspect left standing.
Answer Key — The Great Toy Factory Mix-Up
Culprit: Sprocket (magnet crane · propeller hat · square chassis · solar panel · rusty gear)
- Clue 1 (Place value (tens & ones)): "THE THIEF HAS NO BUBBLE BLOWER"What number has 3 tens and 1 one? = 31 (T) · What number has 4 tens and 1 one? = 41 (F) · What number has 8 tens and 7 ones? = 87 (S) · What number has 1 ten and 7 ones? = 17 (H) · What number has 2 tens and 0 ones? = 20 (B) · What number has 3 tens and 4 ones? = 34 (N) · What number has 6 tens and 6 ones? = 66 (A) · What number has 7 tens and 1 one? = 71 (R) · What number has 7 tens and 5 ones? = 75 (L) · What number has 8 tens and 4 ones? = 84 (E) · What number has 8 tens and 0 ones? = 80 (O) · What number has 5 tens and 8 ones? = 58 (I) · What number has 8 tens and 5 ones? = 85 (U) · What number has 2 tens and 6 ones? = 26 (W)
- Clue 2 (Addition): "THE BOT HAS A SQUARE BODY"17 + 20 = 37 (T) · 42 + 45 = 87 (S) · 11 + 28 = 39 (E) · 65 + 30 = 95 (D) · 23 + 44 = 67 (H) · 27 + 48 = 75 (O) · 9 + 13 = 22 (B) · 29 + 13 = 42 (A) · 22 + 9 = 31 (R) · 32 + 30 = 62 (U) · 33 + 30 = 63 (Y) · 23 + 45 = 68 (Q)
- Clue 3 (Subtraction): "A RUSTY GEAR SLOWS THEM DOWN"81 - 28 = 53 (A) · 64 - 27 = 37 (T) · 78 - 21 = 57 (U) · 93 - 8 = 85 (H) · 28 - 8 = 20 (M) · 61 - 33 = 28 (R) · 94 - 31 = 63 (O) · 61 - 1 = 60 (S) · 88 - 40 = 48 (N) · 85 - 36 = 49 (W) · 50 - 16 = 34 (L) · 54 - 35 = 19 (E) · 52 - 17 = 35 (D) · 73 - 19 = 54 (Y) · 107 - 39 = 68 (G)
- Clue 4 (Skip counting): "A SOLAR PANEL SHINES ON TOP"Skip-count by 10s. Fill the blank: 10, 20, 30, ___, 50, 60 = 40 (A) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ___, 60, 65 = 55 (E) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, ___, 130, 140 = 120 (O) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, ___, 110, 120 = 100 (I) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, ___, 30, 32 = 28 (P) · Skip-count by 3s. Fill the blank: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ___, 36, 39 = 33 (T) · Skip-count by 2s. Fill the blank: 2, 4, 6, 8, 10, 12, ___, 16, 18 = 14 (H) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, ___, 70, 80 = 60 (L) · Skip-count by 5s. Fill the blank: 5, 10, 15, 20, 25, 30, 35, 40, ___, 50, 55 = 45 (S) · Skip-count by 2s. Fill the blank: 2, 4, 6, ___, 10, 12 = 8 (N) · Skip-count by 10s. Fill the blank: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, ___, 150, 160 = 140 (R)
- Clue 5 (Missing addends): surviving statement (box 9) → Sprocket6 + ___ = 7 = 1 · 6 + ___ = 10 = 4 · 4 + ___ = 15 = 11 · 5 + ___ = 10 = 5 · 3 + ___ = 6 = 3 · 2 + ___ = 4 = 2 · 5 + ___ = 12 = 7 · 10 + ___ = 16 = 6 · 4 + ___ = 16 = 12 · 6 + ___ = 14 = 8 · 5 + ___ = 15 = 10
About this mystery
- Grade level
- Grade 2 math
- Math topics
- Place value, Addition, Subtraction, Skip counting, Missing addends
- Reading level
- grades 1-2
- Theme
- The Great Toy Factory Mix-Up — set in Robo-Toy Factory
- Format
- Interactive online & printable worksheet with answer key
- Solution
- One unique, verified culprit among 21 suspects