Solving multi-step addition and subtraction problems

Maths

Problem solving with integer addition and subtraction

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

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

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

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?

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

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?'

Regrouping has not taken place correctly in more than one column.

The digits in the columns have not been aligned correctly.

The numbers have been added instead of subtracted.

The numbers have been switched around when subtracting.

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

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

Check your answer against the estimate to see whether they are similar.

Create a word problem with the numbers that you have used in your calculation.

Recalculate the answer using a different method.

Use the inverse method to confirm your answer.

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

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

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