89 - 49 + ___= 64
20
23
24
26
+ - =
6
10
7
8
24+ 35 = 35 +____ = 59
21
9+ ____ = 15 = 6 + _____
6, 9
6, 4
9, 4
9, 5
Write the mathematical statement for "The sum of 25 and 25 is 50".
25 - 25= 50
50 = 25-25
25+25= 50
50-25= 25
100 - ____ = 100
0
200
300
86 - 20 + ___= 92
25
Write the missing digits.
5
4
3
55+ ____ = 11 +55 = 66
11
13
Which of the following is correct?
2+9= 12
19 -1 = 20
16 - 14= 2
15+0 = 0
