Addition
Subtraction
Rounding
Estimating
True/False
100

57 + 35

92

100

72 - 35

37

100

What is 57 rounded to the nearest 10?

60

100

Estimate the sum of 46 + 37

90

100

87 + 34 = 52 + 56

False

121 > 108

200

118 + 27

145

200

114 - 56

58

200

What is 834 rounded to the nearest 100?

800

200

Estimate the difference of 93 - 17

70

200

143 - 57 = 263 - 177

True

86 = 86

300

209 + 192

401

300

217 - 184

33

300

What is 792 rounded to the nearest 10?

790

300

Estimate the sum of 368 + 189

600

300

265 rounded to the nearest 10 is 300

False

270

400

458 + 284

742

400

722 - 164

658

400

What is 1845 rounded to the nearest 100?

1800

400

Estimate the difference of 746 - 387

400

400

1984 rounded to the nearest 100 is 1900

False

2000

500

869 + 477

1,346

500

900 - 173

727

500

What is 4537 rounded to the nearest 10?

4540

500

Estimate the sum of 555 + 155

800

500

427 + 673 = 1000

False

1100

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