Show:
Equal or Not
Make it Equal Addition
Make it Equal Subtraction
100

5 + 1 = 1 + 5

EQUAL

100

3 + 1 = 4 + ?

0

100

4 + 2 = 10 - ?

4

200

7 + 3 = 8 + 5

NOT EQUAL

200

5 + 6 = 4 + ?

7

200

11 + 5 = 21 - ?

5

300

11 + 5 = 2 + 14

EQUAL 

300

15 + 5 = 10 + ?

10

300

7 + 12 = 27 - ?

8

400

12 + 17 = 14 + 15

EQUAL

400

17 + 12 = 10 + ?

19

400

6 + 12 = 31 - ?

13

500

12 + 9 = 20 + 19

NOT EQUAL 

500

21 + 12 = 16 + ?

17

500

17 + 7 = 27 - ?

3