Question

1. Solve the following equations mentally, a + 8 = 12
b + 13 = 27
9e = 45
8d = 72.​

Answer 1

Answer:

a=12-8=4

b=27-13=14

e=45/9=5

d=72/8=9

Answer 2

Answer:

a+8=12

=12-8=4

4 is the answer.

b+13=27

=27-13=14

14is the answer.

9e=45

=45÷9=5

5 is the answer.

8d=72

=72÷8=9

9is the answer.

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