True or False
5+3 = 3+2
False
15 = ____+5
10
2, 4, 6, 8,
10
2 +5= 7. 5+2=7
7-2= 5. __ - __=
7-5 = 2
10 + 9 =
19
10+2 = 8+5
False
20 = ____ + 12
8
5, 10, 15,
20
9 + 3 = 12. 3+9 = 12
12 - 3= 9. __ - __ =
9 - 3= 12
25 + 6 =
31
15 + 10 = 20 + 5
True
17 + ___= 20
3
10,20,30,40,
50
15 + 4 = 19. 4+15=19
19 - 4=15 __ - __=
19 - 15 = 4
16 + 9 =
25
12 + 12 = 20 +4
True
20 = ___ + 11
9
3,6,9,,
12
17 + 3= 20. 3+ 17=20
20-17 = 3 __ -___=
5+3+8
16
True
25 = 12 + _____
13
20,40,60,
80
15 +10 =25. 10+15 =25
25 - 10 =15 ___ -___ =
25- 15 =10
3 + 7 + 10
20