Question

Subtract (- 40) from 70​

Answer 1

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$- 40 \: from \: 70 \\ \\ = 70 - ( - 40) \\ \\ = 70 + 40 \\ \\ = 110$

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Answer 2

To solve the problem 40 minus 70 using long subtraction, we first put the largest number on top and the smallest number at the bottom like this:

7 0

- 4 0

Then you subtract the ones digits (0 - 0 = 0) like this:

7 0

- 4 0

0

Next you subtract the tens digits (7 - 4 = 3) like this:

7 0

- 4 0

3 0

Note that since the minuend is smaller than the subtrahend, the answer is a negative number.

And that's it. The problem with the answer is displayed below:

40 - 70 = -30