Show:
Rounding to the nearest 10
Rounding to the nearest 100
3-Digit Addition With Regrouping
3-Digit Subtraction With Regrouping
Addition and Subtraction

With Regrouping
100

Round 27 to the nearest 10

30

100

Round 144 to the nearest hundred 

100

100
296+370=
666
100
503-363=
140
100

465 + 935 =

1,400


200

Round 73 to the nearest 10

70

200

Round 172 to the nearest hundred 

200
200
511+396=
907
200
678-296=
382
200

642 - 456 = 

186

300

Round 133 to the nearest 10

130

300

Round 341 to the nearest hundred 

300

300
393+371=
764
300
843-652=
191
300

695 + 998 =

1,693

400

Round 189 to the nearest 10

190

400

Round 259 to the nearest hundred 

300

400
674+190=
864
400
328-258=
70
400

600-426 =

174

500

Round 199 to the nearest 10 

200

500

Round 984 to the nearest hundred

1,000
500
754+197=
951
500
789-198=
591
500

1,000 - 835 =

165