Year 3

Deriving New Facts From Number Bonds (Part 1)

Year 3

Deriving New Facts From Number Bonds (Part 1)

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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.

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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