Show:
Double Facts
Subtraction
Place Value
2 Digit Addition
Addition
100

5+5=

10

100

9-6=

3

100

2 tens 8 ones

28

100
  10

+12

22

100

5+4=

9

200

6+6=

12

200

12-5=

7

200

5 tens 1 one

51

200

  26

+32

58

200

7+5=

12

300

7+7=

14

300

15-4=

11

300

1 ten 6 ones

16

300
  44

+44

88

300

9+6=

15

400

8+8=

16

400

17-8=

9

400

1 hundred 2 tens 0 ones

120

400
  57

+31

88

400

12+5=

17

500

9+9=

18

500

20-9=

11

500

1 hundred 0 tens 3 ones

103

500
  84

+15

99

500

16+4=

20