Word problems in three steps

Difficulty Standard · Set kn0kgi

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1
A box holds 6 pens. 5 boxes are bought and 10 pens are given away. How many pens are left?
2
A box holds 11 pens. 8 boxes are bought and 4 pens are given away. How many pens are left?
3
A box holds 12 pens. 5 boxes are bought and 10 pens are given away. How many pens are left?
4
A box holds 11 pens. 4 boxes are bought and 10 pens are given away. How many pens are left?
5
A box holds 6 pens. 8 boxes are bought and 5 pens are given away. How many pens are left?
6
A box holds 9 pens. 3 boxes are bought and 11 pens are given away. How many pens are left?
7
A box holds 9 pens. 4 boxes are bought and 3 pens are given away. How many pens are left?
8
A box holds 7 pens. 7 boxes are bought and 7 pens are given away. How many pens are left?
9
A box holds 12 pens. 3 boxes are bought and 13 pens are given away. How many pens are left?
10
A box holds 9 pens. 10 boxes are bought and 4 pens are given away. How many pens are left?
11
A box holds 8 pens. 8 boxes are bought and 14 pens are given away. How many pens are left?
12
A box holds 12 pens. 10 boxes are bought and 23 pens are given away. How many pens are left?
13
A box holds 9 pens. 10 boxes are bought and 5 pens are given away. How many pens are left?
14
A box holds 11 pens. 3 boxes are bought and 11 pens are given away. How many pens are left?
15
A box holds 8 pens. 5 boxes are bought and 10 pens are given away. How many pens are left?
16
A box holds 6 pens. 4 boxes are bought and 2 pens are given away. How many pens are left?
17
A box holds 8 pens. 4 boxes are bought and 15 pens are given away. How many pens are left?
18
A box holds 9 pens. 7 boxes are bought and 14 pens are given away. How many pens are left?
19
A box holds 12 pens. 4 boxes are bought and 21 pens are given away. How many pens are left?
20
A box holds 8 pens. 4 boxes are bought and 10 pens are given away. How many pens are left?

What is in this set

The numbers in this set run from 2 to 22.
Every problem in it will take three steps.
A careful solution takes 4 written steps on average.
The mistake this set invites most often, in 100% of the problems: that is how many were bought.
Answers are a whole number.

Drawing 240 problems from this page produced 210 different ones, 88% — 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 6 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.