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1
910×29=
2
13×18=
3
23×35=
4
811×78=
5
27×34=
6
58×34=
7
45×13=
8
35×14=
9
711×29=
10
411×23=
11
14×12=
12
112×12=
13
15×910=
14
310×14=
15
17×45=
16
13×89=
17
18×110=
18
67×12=
19
59×112=
20
37×910=
Answer key
What is in this set
The numbers in this set run from 1 to 12.
31% of them need simplifying at the end.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 100% of the problems: a common denominator was found first; multiplying needs none — the tops multiply and the bottoms multiply.
Answers are a fraction in its lowest terms, written like 3/4.
Drawing 240 problems from this page produced 214 different ones, 89% — 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.