Add
More Adding
Estimate
Missing Addends
Three+ Addends
100

23 + 34

57

100

43 + 58

101

100

34 + 58

30 + 60 = 90

100

4 + 7 + 9

20

100

7 + 8 + __ = 25

10

200

326 + 123

449

200

488 + 937

1425

200

49 + 55

50 + 60 = 110

200

43 + 32 + 4

79

200

9 + __ + 17 = 32

6

300

437 + 283

720

300

4382 +3824

8206

300

276 + 327

300 + 300 = 600

300

23 + 87 + 35

145

300

8 + 15 + __ = 29

6

400

547 + 437

984

400

8345 + 3983

12328

400

$1.23 + $4.57

$1 + $5 = $6

400

102 + 435 + 32

569

400

32 + __ = 47

15

500

4284 + 4438

8722

500

4839 + 7224 + 3281

15344

500

$21.34 + $45.76

$21 + $46 = $67

500

437 + 328 + 321

1086

500

23 + ___ = 61

38

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