Rounding to 10
Rounding to 100
Addition
Subtraction
Inverse Operation
100

26 rounded to the nearest ten

30

100

125 rounded to the nearest hundred

100

100

46 + 38 =

84

100

98 - 63 =

35

100

12 + 15 =

27

27-15=12

200

43 rounded to the nearest ten

40

200

316 rounded to the nearest hundred

300

200

123 + 43 =

166

200

67 - 48 =

19

200

32 - 12 =

20

20 + 12 =32

300

58 rounded to the nearest ten

60

300

267 rounded to the nearest hundred

300

300

98 + 69 =

167

300

123 - 18 =

105

300

123 + 11 =

134

134 - 123 = 11

400

121 rounded to the nearest ten 

120

400

499 rounded to the nearest hundred

500

400

145 + 126 =

271

400

154 - 136 =

18

400

162 - 47 =

115

115 + 47 =162

500

199 rounded to the nearest ten

200

500

65 rounded to the nearest hundred

100

500

1,034 + 367 =

1,401

500

332 - 148 =

184

500

234 + 229 =

463

463 - 234 =229