Use efficient methods to solve subtraction equations 

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

Write a subtraction equation to calculate the missing part in this bar model and solve it.

Which of the following equations will have a difference of 1?

One of the missing numbers in this equation is 57  Which of the following could be the other missing number? ___ − ___ = 1

In which of the following equations will the missing part be a multiple of 10?

What is the missing digit in the equation?

In which of the following equations will you have to bridge 10?

Which of the following equations is correct?

Solve the following equation. 43 − 25 = {{ }}

Andeep has 76 tickets. He buys the ball. How many tickets does he have left?

Andeep had 66 tickets. He bought a plane and now he has 23 tickets left. How much did the plane cost?

Match each equation to the correct answer.

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