Mental Strategies for Multi-digit Whole Number Division

Round to the Nearest 10

100

41

40

200

482

480

300

559

560

400

4,901

4,900

500

5,397

5,400

Multiples of 10

100

4 tens

40

200

8 tens

80

300

16 tens

160

400

72 tens

720

500

512 tens

5,120

Basic Facts to Solve

100

241/58=

240/60=

6x_=24

200

799/99=

800/100=

1x_=8

300

141/73=

140/70=

7x_=14

400

1,463/53=

1,500/50=

5x_=15

500

9,155/34=

9,000/30=

3x_=9

Estimate/Round to Solve

100

821/41=

800/40=

200

476/81=

500/100=

300

5,738/21=

6,000/20=

400

6,918/86=

7,000/100=

500

8,515/89=

9,000/90=

Application

100

Estimate.

609/21=

600/20=30

200

Estimate.

656/81=

640/80=8

300

Estimate.

552/85=

560/80=7

400

Estimate.

5,124/81=

5,000/100=50

500

2,806/15=

3,000/10=300