4 eso academics - unit 0 - exercises 0.4
TRANSCRIPT
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