Standard form back to an ordinary number

Difficulty Standard · Set 0juh3u

Fill in what you can and press Check. Nothing you type is sent anywhere.

1
0.26×10³=
2
7.12×10³=
3
3.82×10⁵=
4
0.82×10⁴=
5
4.43×10⁵=
6
1.92×10⁴=
7
2.38×10²=
8
5.74×10⁴=
9
4.67×10³=
10
6.85×10³=
11
6.35×10²=
12
3.01×10³=
13
6.38×10⁴=
14
9.12×10⁵=
15
5.37×10³=
16
1.05×10⁵=
17
7.7×10⁵=
18
8.6×10³=
19
5.34×10²=
20
8.7×10³=

What is in this set

The numbers in this set run from 0.14 to 10.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 100% of the problems: the power was multiplied instead of used as a count of zeros.
Answers are a whole number.

Drawing 240 problems from this page produced 236 different ones, 98% — so a sheet of 20 is a new sheet almost every time.

The same skill, harder or easier

We would put this in front of a grade 8 class. That is our judgement, not a standard, and it is printed here so you can disagree with it. Everything else we put in that year.