Question

Which of the following is not a natural number?

i. 7 + 9 – 8 ii. 2×5 – 5×2 iii. 15 + 20 ÷ 2 iv. 7×6 ÷ 2

I need urgent ​

Answer 1

Answer:

1. 8
2. 0
3. 17 .5
4. 21

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Answer 2

Answer:

7+9=16 9-8=1 totally 7+9=16-8=8