Deriving New Facts From Number Bonds (Part 1)

Deriving New Facts From Number Bonds (Part 1)

Lesson details

Key learning points

  1. In this lesson, we will investigate and find new facts from number bonds. We will investigate the effect of adding and subtracting 1 to numbers in a calculation, and the effect of adjusting the place value of digits.

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...

4 Questions

Q1.
Which of these equations are linked to the number 6 (select 1)
Correct answer: 10 -4
6 + 1
Double 4
Others
Q2.
'One ten and three ones' is a representation of the number... (Select 1)
11031
Correct answer: 13
131
31
Q3.
'Double 4' is a representation of the number 8 (Select 1)
False
Correct answer: True
Q4.
Which of these equations represent 10? (Select 1)
10 x 0
3 + 8
Correct answer: 5 x 2

6 Questions

Q1.
If I know that 2 + 9 = 11, then I know... (select 1)
11 + 9 = 2
20 + 90 = 11
Correct answer: 20 + 90 = 110
Q2.
If I know that 4 + 5 = 9, then I know (select 1)
14 + 15 = 19
Correct answer: 14 + 5 = 19
4 + 15 = 9
Q3.
If I know that 9 + 7 = 16, then I know (select 1 )
7 + 16 = 9
Correct answer: 8 + 7 = 15
9 - 7 = 16
Q4.
If I know that 2 + 11 = 13, then I know (select 1)
Correct answer: 1 + 11 = 12
1 + 11 = 13
13 + 2 = 11
Q5.
If I know that 5 + 3 = 8, then I know... (select 1)
4 + 3 = 9
6 + 3 = 8
Correct answer: 8 - 5 = 3
Q6.
If I know that 6 + 2 = 8, then I know... (select 1)
Correct answer: 2 + 6 = 8
5 + 2 = 8
8 + 2 = 6

Lesson appears in

UnitMaths / Number sense and exploring calculation strategies