L.O. To subtract numbers with up to three digits
using formal written methods of column subtraction
1)
3
6
4
-
3
6
4
7
2
-
7
2
2)
4
-
2
6
-
4
2
6
1
5
4
1
5
4
3)
2
3
2
-
2
3
2
6
5
-
6
4) Archie’s book has 128 pages. He reads 43 pages. How many pages are left to read?
5) There are 242 children at Tysoe School. 127 of them are boys. How many are girls?
6) A game console costs £315. Tegan has saved £140. How much more money does she need?
7)
4
6
-
3
1
1
5
5
2
8)
2
-
1
1
8
9)
3
3
5
-
1
6
3
1
1
8
4
10)
4
2
5
11)
2
-
1
4
2
-
2
2
3
6
4
3
3
8
2
5
L.O. To subtract numbers with up to three digits using formal written
methods of column subtraction
Teacher’s notes
Answers:
1) 292
2) 272
3) 177
4) 85 5) 115
6) 175
7) 3
8) 9
9) 3
10) 8 11) 614 - 232
Useful interactive games to teach the skills needed for column subtraction:
http://mathsframe.co.uk/en/resources/resource/48/column_subtraction
Practise column subtraction. You can begin with expanded addition, or
column subtraction without the need for borrowing/exchanging.
http://mathsframe.co.uk/en/resources/resource/242/
Column_Subtraction_using_Place_Value_Counters
Place value counters help children to see the need for borrowing/
exchanging.
http://mathsframe.co.uk/en/resources/resource/29/missing_digits
Find the missing digits in the column subtraction calculation.
http://mathsframe.co.uk/en/resources/category/9/addition_and_subtraction
Lots of interactive games to help children develop their fluency and
confidence with subtraction