Collecting like terms

Difficulty Starter · Set 5u5nr6

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1
Simplify5x+4x+2— give the number of x.
2
Simplify5x+3x+3— give the number of x.
3
Simplify5x+5x+4— give the number of x.
4
Simplify6x+3x+6— give the number of x.
5
Simplify3x+6x+3— give the number of x.
6
Simplify3x+2x+8— give the number of x.
7
Simplify4x+3x+9— give the number of x.
8
Simplify6x+6x+4— give the number of x.
9
Simplify5x+6x+8— give the number of x.
10
Simplify4x+6x+3— give the number of x.
11
Simplify2x+3x+3— give the number of x.
12
Simplify4x+3x+3— give the number of x.
13
Simplify3x+5x+2— give the number of x.
14
Simplify4x+5x+4— give the number of x.
15
Simplify3x+5x+9— give the number of x.
16
Simplify4x+3x+2— give the number of x.
17
Simplify6x+3x+9— give the number of x.
18
Simplify2x+5x+2— give the number of x.
19
Simplify2x+4x+2— give the number of x.
20
Simplify5x+3x+9— give the number of x.

What is in this set

The numbers in this set run from 2 to 9.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 100% of the problems: the 4 was collected with the x terms.
Answers are a whole number.

Drawing 240 problems from this page produced 139 different ones, 58% — so a sheet of 20 will come back to a problem you have seen — there are only so many sensible ones of this kind.

The same skill, harder or easier

We would put this in front of a grade 7 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.