Show:
addition without regrouping
subtraction without regrouping
addition with regrouping
subtraction with regrouping
multiplication
100

    45 

+ 22

What is 67?

100

     77

-    63

What is 14?

100

     57

+   36

What is 93?

100

     97

-    29

What is 68?

100

3 x 4

What is 12?

200

    33

+  46

What is 79?

200

    89

-   26

What is 63?


200

    54

+  58

What is 112?

200
    64

-   35

What is 29?

200

5 x 7

What is 35?

300

   74

+ 25

What is 99?

300
      97

-     22

What is 75?

300

    77

+  29

What is 106?

300

    87

-   49

What is 38?

300
8 x 3

What is 24?

400

     63

+   45

What is 108?

400

   87

-  54

What is 33?

400

     78

+   67

What is 145?

400

    73

-   46

What is 27?

400

9 x 6

What is 54?

500

     72

+   24

What is 96?

500
    99

-   36

What is 63?

500

    83

+  97

What is 180?

500

    91

-   33

What is 58?

500

12 x 6

What is 72?