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Lesson details

Key learning points

  1. In this lesson, we will use the formal written method to add decimal numbers and correct mistakes made with this method.

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.
Which known fact will help me answer 30 + 40 and 0.03 + 0.04?
13 + 4 = 17
3 x 4 = 12
4 - 3 = 1
Correct answer: 7 = 3 + 4
Q2.
0.6 + 0.3 = ____
0.009
0.09
Correct answer: 0.9
9
Q3.
If I know 4 + 5 = 9, then I know... (pick two)
Correct answer: 0.04 + 0.05 =
0.4 + 0.09 =
0.5 x 0.4 =
Correct answer: 0.9 - 0.4 =
Q4.
If I know 15 + 4 = 19, then I know... (pick two)
0.04 + 0.015 =
Correct answer: 0.15 + 0.04 =
0.15 + 0.4 =
Correct answer: 1.5 + 0.4 =
Q5.
What is 0.06 - 0.02?
0.004
Correct answer: 0.04
0.4
4

5 Questions

Q1.
True or false: 0.160 + 7.820 = 7.98
False
Correct answer: True
Q2.
True or false: 8.180 + 9.160 = 17.34
False
Correct answer: True
Q3.
True or false: 0.160 + 7.820 = 7.92
Correct answer: False
True
Q4.
True or false: 1.830 + 0.487 = 2.317
False
Correct answer: True
Q5.
True or false: 2.900 + 0.139 = 3.39
Correct answer: False
True

Lesson appears in

UnitMaths / Calculating with whole numbers and decimals