Addition
Subtraction
Start, Change
Multiplication
Division
Comparison
100

194 + x = 373

373 - 194 = x

x = 179

100

x - 925 = 907

907 + 925 = x

x = 1,832

100

The chefs at the bakery started with 693 croissants. After they baked some more, they had 895 croissants. How many croissants did the chefs at the bakery bake?

693 + c = 895

895 - 693 = c

c = 202 croissants

100

3x = 27

27 ÷  3 = x

x = 9

100

x ÷ 9 = 5

9 ⋅ 5 = x

x = 45

100

Julia collected 8 comic books. Blair collected 3 times as many comic books. How many comic books did Blair collect?

x ÷ 3 = 8

3 ⋅ 8 = x

x = 24 by Blair

200

436 + x = 503

503 - 436 = x

67

200

877 - x = 134

877 - 134 = x

x = 743

200

The factory started with 514 headbands. After they sold some, they had 150 left. How many headbands did the factory sell?

514 - c = 150

514 - 150 = c

c = 364 headbands

200

10x = 40

40 ÷ 10 = x

x = 4

200

x ÷ 11 = 3 

11 ⋅ 3 = x

x = 33

200

Sloan has 5 more grapefruits than Ada. Sloan has 18 grapefruits. How many grapefruits does Ada have?

18 - s = 5

18 - 5 = s

s = 13 by Ada

300

x + 135 = 255

255 - 135 = x

x = 120

300

855 - x = 612

855 - 612 = x

x = 243

300

The tree farm had some dogwood trees to start. After they planted 267 more, they had 890 dogwood trees. How many dogwood trees did the tree farm have to start?

s + 267 = 890

890 - 267 = s

s = 623 trees

300

8x = 40

40 ÷  8 = x

x = 5

300

12 ÷ x = 4

12 ÷ 4 = x

x = 3

300

Tess made some tortillas. Trey made 5 times as many tortillas. Trey made 15 tortillas. How many tortillas did Tess make?

5x = 15

15 ÷ 5 = x

x = 3 by Tess

400

x + 576 = 726

726 - 576 = x

x = 150

400

421 - x = 204

421 - 204 = x

x = 217

400

The painters had some paint rollers. After they used 289 of them, they had 343 paint rollers left. How many paint rollers did the painters have to start?

s - 289 = 343

289 + 343 = s

s = 632 paint rollers

400

6x = 24

24 ÷ 6 = x

x = 4

400

x ÷ 10 = 6

10 ⋅ 6 = x

x = 60

400

There are 14 more sunfish than salmon in the pond. There are 6 salmon. How many sunfish are there?

b - 6 = 14

14 + 6  = b

b = 20 sunfish

500

659 + x = 926

926 - 659 = x

x = 267

500

x - 134 = 437

134 + 437 = x

x = 571

500

After 200 coins were removed there were 210 coins left in the piggy bank. How many coins were in the piggy bank to start?

s - 200 = 210

200 + 210 = s

s = 410 coins

500

6x = 12

12 ÷  6 = x

x = 2

500

32 ÷ x = 4

32 ÷ 4 = x

x = 8

500

There are 5 fewer sharks than whales near the shore. There are 14 whales. How many sharks are there?

14 - s = 5

14 - 5 = s

s = 9 sharks

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