Place Value
Associative Property
Rounding
Single Digit
Compatible Numbers
100

5x700

5x7 hundred

35 hundred

3,500

100

9x600

9 x 6 x 100

54 x 100

5,400

100

23

20 or 25

100

65x7

70x7=490

100

23x5

25x5=125

200

3x800

3x 8 hundred

24 hundred

2,400

200

4x30

4 x 3 x 10

12x10

120

200

65

70 or 75

200

549x4

500x4=20,000

200

128x4

120x4=480

300

7x9,000

7x9 thousand

63 thousand

63,000

300

7x800

7x8x100

56x100

5,600

300

345

300 or 350

300

218x5

200x5=1,000

300
243x4

250x4=1,000

400

4x8,000

4 x 8 thousand

32 thousand

32,000

400

6x6000

6x6x1000

36x1000

36,000

400

467

450 or 500

400

1978x4

2,000x4=8,000

400

1,296x9

1,200x9=10,800

500

3x20,000

3 x 2 ten thousand

6 ten thousand

60,000

500

3x50,000

3x5x10,000

15x10,000

150,000

500

1294

1,200 or 1,300

500

679x6

700x6= 4,200

500

24,578x3

25,000x3=75,000

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