Addition!
Doubles!
Subtraction!
Bigger Numbers Addition!
Trickier Subtraction
100

2+3=

5

100

5+5=

10

100

3-2=

1

100

122+321=

443

100

12-4=

8

200

4+5=

9

200

6+6=

12

200

5-3=

2

200

45+28=

73

200

54-18=

36

300

6+7=

13

300

7+7=

14

300

7-4=

3

300

26+57=

83

300

74-11=

63

400

7+8=

15

400

8+8=

16

400

10-2=

8

400

421+153=

574

400

876-123=

753

500

9+7=

16

500

9+9=

18

500

9-4=

5

500

25+32=

57

500

44-29=

15

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