Question

Work out

(
8.8
×
10
−
2
)
+
(
3.4
×
10
−
4
)
Give your answer in standard form

Answer 1

9.14

(8.8 × 10 − 2) + (3.4 × 10 − 4) = 9.14

Answer 2

9.14

Explanation:

To add these numbers, we first need to rewrite them in standard form, which means expressing them as a number between 1 and 10, multiplied by a power of 10.

The first number, (8.8 × 10^-2), is already in standard form.

The second number, (3.4 × 10^-4), is not in standard form. To rewrite it in standard form, we divide 3.4 by 10 twice:

(3.4 × 10^-4) = (0.34 × 10^-2) = (3.4 × 10^-3)

Now that both numbers are in standard form, we can add them:

(8.8 × 10^-2) + (3.4 × 10^-3) = 8.8 + 0.34 = 9.14

The final answer is 9.14.