Adding two digit numbers involving regrouping

Adding two digit numbers involving regrouping

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Lesson details

Key learning points

  1. In this lesson, we will learn how to add 2 digit numbers by partitioning one or both numbers.

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.

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3 Questions

Q1.
Solve the following equation. You may use any strategy you think is best.
An image in a quiz
44
45
Correct answer: 54
Q2.
Solve the following equation. You may use any strategy you think is best.
An image in a quiz
56
59
Correct answer: 65
Q3.
Solve the following equation. You may use any strategy you think is best.
An image in a quiz
48
50
Correct answer: 52

3 Questions

Q1.
Solve the following equation by partitioning 1 number: 26+15=
31
35
Correct answer: 41
Q2.
Solve the following equation by partitioning both numbers: 49+25=
64
Correct answer: 74
75
Q3.
Solve the following equation by using any strategy you think makes sense: 28+15=
38
Correct answer: 43
44

Lesson appears in

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