Solving problems with decimals using addition and subtraction

Solving problems with decimals using addition and subtraction

Lesson details

Key learning points

  1. In this lesson, we will solve addition and subtraction problems with decimals and generate our own word problems to suit equations. We will develop our understanding of decimal problem-solving through bar models and a variety of real life contexts.

Licence

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6 Questions

Q1.
6.3 + 12.27
1.857
Correct answer: 18.57
18.75
Q2.
2.89 - 1.41 =
0.148
Correct answer: 1.48
14.8
Q3.
7.3 + 7.2 =
1.45
Correct answer: 14.5
5.14
Q4.
2.671 + 5.999
Correct answer: 8.67
8.761
86.71
Q5.
4.53 - 4.49
0.004
Correct answer: 0.04
0.4
Q6.
1.82 + 4.08
5.09
Correct answer: 5.9
5.91

6 Questions

Q1.
Sofia is 134.7cm tall. Her sister is 107.4cm tall. How much taller is Sofia than her sister?
An image in a quiz
Correct answer: 134.7 - 107.4
134.7 + 107.4
134.7 x 107.4
Q2.
How much taller is Sofia than her sister?
14,466.78cm
242.1cm
Correct answer: 27.3cm
Q3.
It is Grandad’s birthday soon and he wants to hire a sports car for his present. A sports car costs £49.50 initial payment then £29.50 per hour. Grandad is bought 4 hour's hire. How much did Grandad’s present cost?
An image in a quiz
49.50 - 29.50
Correct answer: 49.50 + (29.50 x 4)
49.50 + 29.50
Q4.
How much did Grandad's present cost?
Correct answer: £167.50
£20.00
£79.00
Q5.
To visit his grandmother, Zaid takes a train 6.37 km and a car 5.45 km. How many kilometres is his journey in total?
11.72km
Correct answer: 11.82 km
12.82km
Q6.
The temperature in the classroom was 21.8 °C. Claire left the door open and the temperature dropped by 3.7 °C. What was the temperature now?
Correct answer: 18.1°C
22.1°C
25.5°C

Lesson appears in

UnitMaths / Calculating with whole numbers and decimals