Word problems about a perimeter

Difficulty Standard · Set 7kerdf

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1
A garden is 9 meters long and 10 meters wide. How many meters of fence go all the way round it?
2
A garden is 16 meters long and 2 meters wide. How many meters of fence go all the way round it?
3
A garden is 11 meters long and 17 meters wide. How many meters of fence go all the way round it?
4
A garden is 18 meters long and 15 meters wide. How many meters of fence go all the way round it?
5
A garden is 13 meters long and 9 meters wide. How many meters of fence go all the way round it?
6
A garden is 9 meters long and 11 meters wide. How many meters of fence go all the way round it?
7
A garden is 8 meters long and 13 meters wide. How many meters of fence go all the way round it?
8
A garden is 3 meters long and 10 meters wide. How many meters of fence go all the way round it?
9
A garden is 5 meters long and 4 meters wide. How many meters of fence go all the way round it?
10
A garden is 15 meters long and 20 meters wide. How many meters of fence go all the way round it?
11
A garden is 18 meters long and 20 meters wide. How many meters of fence go all the way round it?
12
A garden is 11 meters long and 20 meters wide. How many meters of fence go all the way round it?
13
A garden is 6 meters long and 16 meters wide. How many meters of fence go all the way round it?
14
A garden is 9 meters long and 7 meters wide. How many meters of fence go all the way round it?
15
A garden is 20 meters long and 15 meters wide. How many meters of fence go all the way round it?
16
A garden is 9 meters long and 9 meters wide. How many meters of fence go all the way round it?
17
A garden is 16 meters long and 3 meters wide. How many meters of fence go all the way round it?
18
A garden is 3 meters long and 13 meters wide. How many meters of fence go all the way round it?
19
A garden is 17 meters long and 12 meters wide. How many meters of fence go all the way round it?
20
A garden is 20 meters long and 5 meters wide. How many meters of fence go all the way round it?

What is in this set

The numbers in this set run from 2 to 20.
Every problem in it will take one step.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 99% of the problems: the two lengths were multiplied — that covers the garden; a fence goes round the edge of it.
Answers are a whole number.

Drawing 240 problems from this page produced 177 different ones, 74% — 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 4 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.