To split a whole up into parts; a piece or section of a whole.

Subtract two-digit numbers crossing the tens boundary

Maths

In this unit pupils will learn to find 10 more or less than a 2-digit number. They will  add and subtract 10 to/from a 2-digit number using number facts. In the future unit pupils will add 3 addends, understanding they can be added in any order, bridging through 10.

In the prior unit pupils added and subtracted 1s and 10s from 2 digit numbers. They used number facts to add/subtract a single-digit number to/from a 2-digit number and used a part-part-whole model to represent addition and subtraction. In this unit pupils will learn to find 10 more or less than a 2-digit number. They will  add and subtract 10 to/from a 2-digit number using number facts.

Addition and subtraction of two 2-digit numbers

Which of the following equations will have a difference of a multiple of 10?

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Use the pattern to predict the answer to the next equation. 74 − 49 = {{ }}

Use the pattern to predict the next equation in the sequence.

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Match each equation to the number that correctly completes it.

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