Find the missing part when subtracting two-digit numbers

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 equation has a whole that is a multiple of 10

Which bar model represents the equation shown? 43 = 60 − ?

Write the addition equation you would use to check this subtraction. 57 − 33 = 24

Which number would solve the equation. 76 − {{   }} = 23

Which bar model would represents the equation shown? {{  }} − 42 = 25

Which of the following equations will result in a multiple of 10?

Which number line could be used to solve the equation shown? 73 − 36 = ?

Use the pattern to predict the answer to the next equation.

Use the pattern to predict the next equation in the sequence. The next equation will be {{ }}

Write a subtraction equation, then solve it to find the missing part in the bar model.

Match each equation to the number that correctly completes it.

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