Fill in what you can and press Check. Nothing you type is sent anywhere.
1
40.7+72.23
2
921.1+140.73
3
779.0+436.87
4
695.6+718.06
5
53.3+810.85
6
369.5+45.65
7
212.2+653.80
8
369.1+909.26
9
920.6+643.59
10
312.7+453.24
11
289.4+554.36
12
415.9+893.92
13
966.0+303.45
14
665.0+359.31
15
326.4+774.96
16
669.9+845.99
17
152.1+362.92
18
154.0+196.09
19
7.4+59.26
20
201.6+813.31
Answer key
What is in this set
The numbers in this set run from 1.89 to 999.1.
Every problem in it will have a different number of decimal places on each side.
A careful solution takes 5 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.