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Grade 6

Finding the unknown (4 operations) II

Interactive practice questions

We want to work out the value of $d$d that makes the following equation true:

$8+2\times d=16$8+2×d=16

a

First let's complete a simpler expression. Fill in the blank in the equation below.

$8+\editable{}=16$8+=16

b

So $2\times d=8$2×d=8. What number times $2$2 equals $8$8?

Easy
< 1min

We want to work out the value of $d$d that makes the following equation true:

$8+5\times d=28$8+5×d=28

Easy
< 1min

We want to work out the value of $n$n that makes the following equation true:

$26=6+10\times n$26=6+10×n

Easy
< 1min

Let's work out what $b$b must equal to make the following equation true.

$4\times6=b+20$4×6=b+20

Easy
< 1min
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Outcomes

6.PA2.01

Demonstrate an understanding of different ways in which variables are used (e.g., variable as an unknown quantity; variable as a changing quantity)

6.PA2.04

Determine the solution to a simple equation with one variable, through investigation using a variety of tools and strategies (e.g., modelling with concrete materials, using guess and check with and without the aid of a calculator)

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