UNIT 00 September

1. Calculate:

a) 𝟐𝟐𝟐𝟐𝟐𝟐 + 𝟕𝟕𝟕𝟕 + 𝟏𝟏𝟏𝟏𝟏𝟏

b) 𝟏𝟏𝟐𝟐𝟑𝟑 + 𝟐𝟐𝟐𝟐𝟐𝟐 −𝟐𝟐𝟐𝟐𝟒𝟒

c) 𝟏𝟏,𝟐𝟐𝟐𝟐𝟏𝟏− 𝟕𝟕𝟏𝟏𝟏𝟏+ 𝟏𝟏𝟏𝟏

d) 𝟏𝟏,𝟏𝟏𝟐𝟐𝟑𝟑− 𝟏𝟏,𝟏𝟏𝟑𝟑𝟕𝟕 −𝟐𝟐𝟕𝟕

e) 𝟏𝟏,𝟐𝟐𝟕𝟕𝟐𝟐+ 𝟐𝟐,𝟑𝟑𝟕𝟕𝟒𝟒 + 𝟐𝟐,𝟕𝟕𝟒𝟒𝟒𝟒

f) 𝟐𝟐,𝟏𝟏𝟐𝟐𝟏𝟏− 𝟕𝟕𝟒𝟒+ 𝟏𝟏𝟐𝟐𝟐𝟐

2. Work out in your head.

a) 𝟐𝟐 + 𝟕𝟕 – 𝟏𝟏 – 𝟐𝟐

b) 𝟏𝟏𝟕𝟕 – 𝟐𝟐 – 𝟐𝟐 – 𝟏𝟏

c) 𝟏𝟏𝟑𝟑 – 𝟏𝟏 + 𝟏𝟏 – 𝟕𝟕

d) 𝟕𝟕 + 𝟐𝟐 – 𝟐𝟐 – 𝟏𝟏 – 𝟐𝟐

e) 𝟏𝟏𝟐𝟐 + 𝟏𝟏𝟏𝟏 + 𝟕𝟕 – 𝟐𝟐𝟏𝟏

f) 𝟐𝟐𝟑𝟑 – 𝟏𝟏𝟕𝟕 – 𝟏𝟏𝟐𝟐 – 𝟏𝟏

3. Reason out, calculate and complete:

a) 𝟏𝟏𝟒𝟒𝟏𝟏 + = 𝟕𝟕𝟑𝟑𝟑𝟑

b) + 𝟐𝟐𝟐𝟐 = 𝟐𝟐𝟐𝟐𝟑𝟑

c) 𝟏𝟏𝟐𝟐𝟕𝟕 − = 𝟐𝟐𝟐𝟐

Axel Cotón Gutiérrez Mathematics 4º ESO Exercises - 0.4.1

UNIT 00 September

d) − 𝟐𝟐𝟏𝟏𝟏𝟏 = 𝟐𝟐𝟐𝟐𝟑𝟑

e) − 𝟏𝟏𝟐𝟐𝟐𝟐 = 𝟐𝟐𝟐𝟐𝟑𝟑

4. Fill in the empty gaps:

a)

𝟐𝟐,𝟐𝟐𝟐𝟐 𝟏𝟏,𝟏𝟏 𝟑𝟑+𝟏𝟏, 𝟏𝟏𝟏𝟏

,𝟒𝟒𝟒𝟒𝟕𝟕

b) 𝟏𝟏, 𝟕𝟕− ,𝟐𝟐𝟏𝟏 𝟏𝟏,𝟐𝟐𝟐𝟐𝟏𝟏

c)

𝟐𝟐, 𝟏𝟏𝟕𝟕 𝟐𝟐,𝟏𝟏 𝟏𝟏+ ,𝟐𝟐𝟐𝟐

𝟐𝟐 ,𝟐𝟐𝟕𝟕𝟐𝟐

d) 𝟏𝟏, 𝟕𝟕− ,𝟐𝟐 𝟏𝟏 𝟏𝟏,𝟒𝟒𝟐𝟐𝟕𝟕

5. A lorry is carrying a car and a van. The car weighs 3,582 kilos and the van weighs 892

kilos more than the car. How much weight is the lorry carrying?

6. A cinema sells 458 tickets for the afternoon show and 137 less for the evening show.

How many tickets are sold in total?

7. Aithor has € 142,384 in the bank and he wins € 52,325 in the lottery. How much more

money does he need to buy a house that costs € 264,000?

Axel Cotón Gutiérrez Mathematics 4º ESO Exercises - 0.4.2

UNIT 00 September

http://www.coolmath-games.com/0-math-lines

http://www.coolmath-games.com/0-number-twins

Axel Cotón Gutiérrez Mathematics 4º ESO Exercises - 0.4.3

UNIT 00 September

http://www.mathnook.com/math/math-balloons-subtraction.html

http://www.mathnook.com/math/bike-racing-math-subtraction.html

More games:

http://www.coolmath-games.com/1-addition-subtraction-games

http://www.mathnook.com/math/skill/additiongames.php

http://www.mathnook.com/math/skill/subtractiongames.php

Axel Cotón Gutiérrez Mathematics 4º ESO Exercises - 0.4.4