Year 3
Subtracting 3-digit numbers (regrouping in multiple columns)
Year 3
Subtracting 3-digit numbers (regrouping in multiple columns)
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Lesson details
Key learning points
- In this lesson, we will consolidate learning on column subtraction and will practise regrouping across all columns
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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5 Questions
Q1.
Regrouping means...
Addition
multiplication
subtraction
Q2.
Which of these calculations requires regrouping?
317 - 205 =
444 - 222 =
900 - 700 =
Q3.
Does this calculation require regrouping?
Maybe
No
Q4.
458 - 192 =
199
200
346
Q5.
Is this calculation correct? 520 - 150 = 330
Maybe
Yes
5 Questions
Q1.
Column subtraction is a...
estimate
mental strategy
Q2.
Which of these calculations require regrouping?
215 - 111 =
600 - 500 =
678 - 123 =
Q3.
Does this look like a reasonable answer? 754 - 569 = 501
Yes
Q4.
943 - 276 = 767 True or false?
Option 1
True
Q5.
761 - 279 =
518
582
600