Show:
I can count it with blocks
Decade Numbers
100s and 1000s
Fill in the Blank
My Favorite Mistake
500
6 X 10
60
500
3 X 30
90
500

60 x 9

540

500

57x20 = 57x2x___

What is 10?

500

What mistake did this student make?

20x12=120

What is they multiplied by ten instead of twenty?

500
4 X 10
40
500
3 X 40
120
500

4 x 700

2,800

500

___ x 4000 = 160000

What is 40?

500

What mistake did this student make?

10 x 140 = 150

What is adding instead of multiplying?

500
3 X 10
30
500

9 X 50

450
500

9 x 6,000

54,000

500

10 x ___ = 150

What is 15?

500

What mistake did this student make?

10x25=150

What is they multiplied by 6 instead of 10?

500

2 X 100

200

500
7 X 20
140
500

900 x 3

2,700

500

23x30=__x3x10

What is 23?

500

What mistake did this student make?

80x30=240

What is they have the wrong number of zeros?

500

5 X 100

500

500

30 x 4

120

500

500 x 5

2,500

500

20 x ___ = 2000

What is 100?

500

What mistake did this student make?

30x3=60

What is they added instead of multiplying?