Show:
Mental Math
Subtract
Add
Multiply
Divide
Place Value
100

30+30 + 40 =

100

100

60 - 31 = 

29

100

37 + 70 = 

107

100

4 x 12 =

48

100

24 divided by 4=

6

100

What is the place value of 5 in 7564?

Hundreds

200

4x7=

28

200

56 - 28 = 

28

200

155 + 24 = 

179

200

9 x 7 =

63

200

66 divided by _____ =33

2

200

Write 46,582 in expanded form

40,000+6,000+500+80+2

300

9 x 12 =

108

300

572-561=

11

300

98 + 99 = 

197

300

3 x 13

39

300

56 divided by 7 

8

300

What number is 100 more than 27,643?

27,743

400

3x3x3=

27

400
442-128=

314

400

28 + __ = 131

103

400

7 x 13

91

400

45 divided into 9=

5

400

Take away 1000 from 134,569.

133,569

500

60 divided by ____ = 5

12

500

490- 298 = 

192

500
143 + 134 + 68 =

345

500

57 x 3 = 

171

500

121 divided into 11=

11

500

Round off to the nearest tens: 168

170