Writing a number in standard form

Difficulty Starter · Set eutxxy

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1
Write 62,100 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
2
Write 4,000 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
3
Write 2,950 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
4
Write 2,440 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
5
Write 5,180 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
6
Write 676 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
7
Write 90,400 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
8
Write 650 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
9
Write 49,500 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
10
Write 9,450 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
11
Write 440 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
12
Write 156 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
13
Write 613 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
14
Write 70,400 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
15
Write 99,200 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
16
Write 839 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
17
Write 984 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
18
Write 8,190 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
19
Write 809 in standard form, as a number between 1 and 10 times a power of ten. Give the power.
20
Write 488 in standard form, as a number between 1 and 10 times a power of ten. Give the power.

What is in this set

The numbers in this set run from 1 to 990.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 91% of the problems: the digits were counted; the power is how many places the point moves, which is one fewer.
Answers are a whole number.

Drawing 240 problems from this page produced 230 different ones, 96% — 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.