Round and Adjust with Addition

Maths

Addition and subtraction of 2-digit numbers (regrouping and adjusting)

What is the nearest multiple of ten to  49?

What is the nearest multiple of 10 to 79?

Use the "round and adjust" strategy to solve the following equation: 42+39=?

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?

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?

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?

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