Expanded Form Addition
Base-10 Addition
Base-10 Subtraction
Arrow Method (Addition and Subtraction)
Word Problems
100

15+12=?

27

100

17+2=?

19

100

29-7=?

22

100

14+22=?

36

100

Liam has 6 apples. His mom gives him 3 more apples. How many apples does Liam have now?

Liam has 9 apples.

200

134+25=?

159

200

38+12=?

50

200

38-15=?

23

200

34-22=?

12

200

There are 10 ducks in a pond. 4 ducks swim away. How many ducks are left in the pond?

6 ducks are left in the pond.

300

127+34=?

161

300

72+19=?

91

300

43-29=?

14

300

142+39=?

181

300

Sofia has 8 stickers. Her friend gives her 7 more stickers. How many stickers does Sofia have in all?

Sofia has 15 stickers.

400

256+45=?

301

400

133+28=?

161

400

152-34=?

118

400

164-29=?

135

400

There are 15 kids on the playground. 6 kids go inside to get water. How many kids are still on the playground?

There are 9 kids still on the playground.

500

352+259=?

611

500

152+78=?

230

500

134-46=?

88

500

172+231=?

403

500

There are 24 books on a shelf. The teacher takes 9 books to read with the class. How many books are left on the shelf?

There are 15 books left on the shelf.

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