# Addition and subtraction problems involving angles

## Interactive practice questions

Calculate the size of $\angle ABC$ABC.

Easy
Less than a minute

Calculate the size of $\angle ABC$ABC.

Calculate the size of $\angle ABC$ABC.

In the following figure, $\angle RTV$RTV=$49$49° and $\angle UTV$UTV=$26$26°. Find $\angle RTU$RTU.

### Outcomes

#### NA3-1

Use a range of additive and simple multiplicative strategies with whole numbers, fractions, decimals, and percentages.

#### NA3-6

Record and interpret additive and simple multiplicative strategies, using words, diagrams, and symbols, with an understanding of equality