Question

9. Without adding, find the following sums.
a. 1+3+5+ 7 + 9 +11
b. 1+3+5+7+9+11+13+ 15 + 17 + 19
c. 1+3+5+7
d. 1+3+5+7 +9 e. 1+3+5+ 7 + 9 + 11 + 13+ 15​

Answer 1

Answer:

1.36

2.100

3.16

4.25

e.64

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