Using and explaining addition strategies

In this lesson, we will be learning how to use different addition strategies (e.g. partitioning, commutativity and rounding and adjusting) in order to solve Magic Squares.

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Using and explaining addition strategies

Quiz to be completed following lesson on: 'Using and explaining addition strategies'.

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.1. Complete the following equation using your knowledge of number bonds: 74 + _____ = 100

1/5

Q2.2. Use the partitioning strategy to solve the following equation: 34 + 13 =

2/5

Q3.What is the law of commutativity?

3/5

Q4.4. Use the round and adjust strategy to solve: 71 + 16 =

4/5

Q5.5. Which strategy would be most appropriate/efficient when solving: 33 + 21 =

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Using and explaining addition strategies

Quiz to be completed following lesson on: 'Using and explaining addition strategies'.

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.1. Complete the following equation using your knowledge of number bonds: 74 + _____ = 100

1/5

Q2.2. Use the partitioning strategy to solve the following equation: 34 + 13 =

2/5

Q3.What is the law of commutativity?

3/5

Q4.4. Use the round and adjust strategy to solve: 71 + 16 =

4/5

Q5.5. Which strategy would be most appropriate/efficient when solving: 33 + 21 =

5/5

Lesson summary: Using and explaining addition strategies

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