Lesson details

Key learning points

  1. In this lesson, we will be identify which known number bonds will help us subtract a 2-digit number from a 2-digit number.

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.

Loading...

5 Questions

Q1.
If 3 + 6 = 9 then 39 + 60 = ______
9
90
96
Correct answer: 99
Q2.
Which TWO number facts help us to solve 24 + 35?
Correct answer: 2 + 3 = 5
2 + 5 = 7
3 + 4 = 7
Correct answer: 4 + 5 = 9
Q3.
Which TWO number facts help us to solve 17 + 52?
Correct answer: 1 + 5 = 6
5 - 1 = 4
7 - 2 = 5
Correct answer: 7 + 2 = 9
Q4.
Which TWO number facts help us to solve 23 + 54?
Correct answer: 3 + 4 = 7
4 - 3 = 1
Correct answer: 5 + 2 = 7
5 + 3 = 8
Q5.
What is 63 + 12?
57
70
74
Correct answer: 75

5 Questions

Q1.
If 7 - 2 = 5 then 73 - 20 = ______
5
50
Correct answer: 53
57
Q2.
Which TWO number facts help us to solve 75 - 21?
Correct answer: 5 - 1 = 4
7 - 1 = 6
Correct answer: 7 - 2 = 5
7 + 2 = 9
Q3.
Which TWO number facts help us to solve 37 - 11?
Correct answer: 3 - 1 = 2
3 + 1 = 4
Correct answer: 7 - 1 = 6
7 - 3 = 4
Q4.
What is 56 - 31?
Correct answer: 25
27
87
96
Q5.
What is 72 - 21?
50
Correct answer: 51
53
93

Lesson appears in

UnitMaths / Addition and subtraction of 2-digit numbers