3.
4.
In 1-4, complete the equations that represent the picture.
1.
2.
3
3
5
2
3x = 2 x (3+3)
3x3 = (3x)4 (3×2)
3x: =
+ = 15
3 x
3 x
3 x
x7=x+4)
x7=(x3)+(4x)
×7=+=28
||
x (2+)
(3x)+(x4)
= 18
=
= [
+
x6=x+3)
x6=(x3)+(5x)
+
x6 =
= 30
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