## Lesson details

### Key learning points

1. In this lesson, we will learn how to use the "Round and Adjust" strategy to help us solve addition equations.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 3 Questions

Q1.
Solve the following word problem: Bob the builder worked for 28 days last month. This month he worked 18 days. How many days has he worked altogether?
18+18=36
28-18=10
Q2.
Solve the following word problem: There were 51 builders on site. 32 were building houses and the rest were driving diggers. How many builders were driving diggers?
32+32=35
51+32=83
Q3.
Solve the following word problem: Ms. Dobrowolski bought 54 bricks at the store. She used 38 of them to start building a summer house. How many bricks does she have left?
54-38=26
54+38=92

## Exit quiz

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### 3 Questions

Q1.
What is the nearest multiple of ten to 49?
10
40
Q2.
What is the nearest multiple of 10 to 79?
10
70