Solving multi-step addition and subtraction problems

In this lesson, we will be applying the addition and subtraction strategies that we have learned to word and real life problems.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Select the equation below that matches this maths story: '87 315 cars were sold over the weekend. 12 872 of these cars were new and the rest were secondhand. How many cars were secondhand?'

87 315 + 12 87287 315 - 12 87212 872 + 87 31512 872 - 87 315

1/5

Q2.Describe the error that has been made in the following calculation: 213 876 - 114 689 = 328 565.

The digits in the columns have not been aligned correctly.Regrouping has not taken place correctly in more than one column.The numbers have been switched around when subtracting.The numbers have been added instead of subtracted.

2/5

Q3.Write out the following column method calculation and describe the error that has occurred: 562 088 - 134 199 = 432 111.

3/5

Q4.Which of the following methods is NOT a sensible way of checking to see whether we have made an error using the column method?

Use the inverse method to confirm your answer.Check your answer against the estimate to see whether they are similar.Recalculate the answer using a different method.Create a word problem with the numbers that you have used in your calculation.

4/5

Q5.What is the missing number in the following equation: 435 629 + _________ = 772 345

436 716236 716336 716536 716

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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Select the equation below that matches this maths story: '87 315 cars were sold over the weekend. 12 872 of these cars were new and the rest were secondhand. How many cars were secondhand?'

87 315 + 12 87287 315 - 12 87212 872 + 87 31512 872 - 87 315

1/5

Q2.Describe the error that has been made in the following calculation: 213 876 - 114 689 = 328 565.

2/5

Q3.Write out the following column method calculation and describe the error that has occurred: 562 088 - 134 199 = 432 111.

3/5

Q4.Which of the following methods is NOT a sensible way of checking to see whether we have made an error using the column method?

4/5

Q5.What is the missing number in the following equation: 435 629 + _________ = 772 345

436 716236 716336 716536 716

5/5

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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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >

Quiz:

Solving multi-step addition and subtraction problems

Quiz to be completed following lesson on 'Solving multi-step addition and subtraction problems.'

Q1.Use the column method to solve: 3167 + 2954 + 6319 =

11 46710 67212 44018 721

1/5

Q2.Use the counting back method to solve: 10 000 - 5980 =

4020302080201673

2/5

Q3.Use the counting on method to solve: 10 000 - 7630 =

3780589023701480

3/5

Q4.I have a step count target of 20 000 steps a day. So far, I have walked 13 780 steps around the park and 4620 steps in my house. How many more steps do I have to reach my total?

1800160014001200

4/5

Q5.Today, I walked 18 673 steps. How many steps over my target of 15 000 have I walked?

2768198230913673

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.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >

Quiz:

Solving multi-step addition and subtraction problems

Quiz to be completed following lesson on 'Solving multi-step addition and subtraction problems.'

Q1.Use the column method to solve: 3167 + 2954 + 6319 =

11 46710 67212 44018 721

1/5

Q2.Use the counting back method to solve: 10 000 - 5980 =

4020302080201673

2/5

Q3.Use the counting on method to solve: 10 000 - 7630 =

3780589023701480

3/5

Q4.I have a step count target of 20 000 steps a day. So far, I have walked 13 780 steps around the park and 4620 steps in my house. How many more steps do I have to reach my total?

1800160014001200

4/5

Q5.Today, I walked 18 673 steps. How many steps over my target of 15 000 have I walked?

2768198230913673

5/5

Lesson summary: Solving multi-step addition and subtraction problems

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This was the final lesson in the unit Problem solving with integer addition and subtraction.

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