Fill in what you can and press Check. Nothing you type is sent anywhere.
1
66.20−29.9
2
42.53−17.7
3
95.70−40.0
4
25.8−21.71
5
52.6−34.76
6
52.67−36.1
7
24.9−14.61
8
90.52−16.5
9
37.5−22.70
10
87.54−38.6
11
35.9−10.08
12
77.7−10.96
13
74.8−70.14
14
99.89−4.5
15
67.9−40.69
16
74.8−46.88
17
79.81−13.1
18
80.4−28.21
19
67.3−25.16
20
90.66−45.9
Answer key
What is in this set
The numbers in this set run from 1.3 to 99.93.
Every problem in it will have a different number of decimal places on each side.
A careful solution takes 4 written steps on average.
The mistake this set invites most often, in 100% of the problems: the numbers were lined up by their last digit instead of by the decimal point — the points have to sit one above the other, and the short one gets a zero.
Answers are a decimal.
Drawing 240 problems from this page produced 240 different ones, 100% — so a sheet of 20 is a new sheet almost every time.
We would put this in front of a grade 5 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.