NZ Level 4 Add/sub using models (incl mixed numbers) (2,3,4,5,6,8,10,12)

## Interactive practice questions

In the image below, $4$4 blocks are broken into $8$8 squares each. $2\frac{1}{2}$212 blocks have been shaded red and $1\frac{1}{8}$118 blocks have been shaded blue.                                                            a

In its simplest form, the addition of the red and blue shaded blocks can be written as $\editable{}\frac{\editable{}}{\editable{}}+\editable{}\frac{\editable{}}{\editable{}}$+.

b

Easy
Approx 2 minutes

In the image below, $3$3 blocks are broken into $6$6 squares each. $1\frac{1}{3}$113 blocks have been shaded red and $1\frac{1}{6}$116 blocks have been shaded blue.

In the image below, the following $4$4 blocks are broken into $12$12 squares each. $2\frac{1}{4}$214 blocks have been shaded red and $1\frac{5}{12}$1512 blocks have been shaded blue.

In the image below, $3$3 blocks are broken into $10$10 squares each. $1\frac{2}{5}$125 blocks have been shaded red and $1\frac{1}{10}$1110 blocks have been shaded blue.

### Outcomes

#### NA4-2

Understand addition and subtraction of fractions, decimals, and integers