Addition With Regrouping
Subtraction With Regrouping
More Addition With Regrouping
More Subtraction With Regrouping
Surprise!
100

45,693 + 38,227=

83,920

100

26,897-15,318=

11,579

100

57,296+89,370=

146,666

100

10,503-9,363=

1,140

100

Estimate-Round to the nearest ten 12,349-8,156=

4,190

200

99,954 + 1,176=

101,130

200

54283-27847=

26,436

200

11,511+89,396=

100,907

200

154,678-63,296=

91,382

200

Estimate-Round to the nearest ten 34,579+68,219=

102,800

300

68,428+99,996=

168,424

300

890,092-699,063=

191,029

300

68,393+73,371=

141,764

300

35,843-24,652=

11,191

300

Estimate-Round to the nearest hundred 54,456+33,328=

87,800

400

328,747+237,956=

566,703

400

900,073-555,556=

344,517

400

778,674+199,190=

977,864

400

83,328-59,258=

24,070

400

Estimate-Round to the nearest hundred 57,765-23,998=

33,800

500

293,839+764,868=

1,058,707

500

1,111,111-888,888=

222,223

500

1,068,431+36,743

1,105,174

500

1,031,789-789,198=

242,591

500

Estimate-Round to the nearest hundred 999,999-333,333=

666,700