1. The document contains math exercises involving addition, subtraction, and word problems. It asks the student to calculate various math expressions, work some out in their head, reason through others and calculate the missing values, and solve word problems about the weight of vehicles and number of tickets sold. 2. It also provides links to online math games related to addition, subtraction, and number lines to help practice those skills. The games include matching number pairs, racing bikes, and popping balloons to practice addition and subtraction. 3. Additional online games are suggested at other sites for practicing addition and subtraction through activities like racing bikes or popping balloons.

1. UNIT 00 September
1. Calculate:
a) 𝟐𝟐𝟐𝟐𝟐𝟐 + 𝟕𝟕𝟕𝟕 + 𝟏𝟏𝟏𝟏𝟏𝟏
b) 𝟑𝟑𝟑𝟑𝟑𝟑 + 𝟐𝟐𝟐𝟐𝟐𝟐 − 𝟒𝟒𝟒𝟒𝟒𝟒
c) 𝟏𝟏, 𝟓𝟓𝟓𝟓𝟓𝟓 − 𝟖𝟖𝟖𝟖𝟖𝟖 + 𝟔𝟔𝟔𝟔
d) 𝟏𝟏, 𝟑𝟑𝟑𝟑𝟑𝟑 − 𝟏𝟏, 𝟏𝟏𝟏𝟏𝟏𝟏 − 𝟓𝟓𝟓𝟓
e) 𝟔𝟔, 𝟓𝟓𝟓𝟓𝟓𝟓 + 𝟐𝟐, 𝟎𝟎𝟎𝟎𝟎𝟎 + 𝟓𝟓, 𝟖𝟖𝟖𝟖𝟖𝟖
f) 𝟒𝟒, 𝟏𝟏𝟏𝟏𝟏𝟏 − 𝟖𝟖𝟖𝟖 + 𝟑𝟑𝟑𝟑𝟑𝟑
2. Work out in your head.
a) 𝟓𝟓 + 𝟕𝟕 – 𝟑𝟑 – 𝟒𝟒
b) 𝟏𝟏𝟏𝟏 – 𝟒𝟒 – 𝟓𝟓 – 𝟔𝟔
c) 𝟏𝟏𝟎𝟎 – 𝟔𝟔 + 𝟑𝟑 – 𝟕𝟕
d) 𝟖𝟖 + 𝟓𝟓 – 𝟒𝟒 – 𝟑𝟑 – 𝟓𝟓
e) 𝟏𝟏𝟐𝟐 + 𝟏𝟏𝟑𝟑 + 𝟖𝟖 – 𝟐𝟐𝟑𝟑
f) 𝟒𝟒𝟎𝟎 – 𝟏𝟏𝟖𝟖 – 𝟏𝟏𝟐𝟐 – 𝟔𝟔
3. Reason out, calculate and complete:
a) 𝟑𝟑𝟑𝟑𝟑𝟑 + = 𝟖𝟖𝟖𝟖𝟖𝟖
b) + 𝟓𝟓𝟓𝟓 = 𝟐𝟐𝟐𝟐𝟐𝟐
c) 𝟏𝟏𝟏𝟏𝟏𝟏 − = 𝟐𝟐𝟐𝟐
Axel Cotón Gutiérrez Mathematics 4º ESO Exercises - 0.4.1

2. UNIT 00 September
d) − 𝟐𝟐𝟐𝟐𝟐𝟐 = 𝟓𝟓𝟓𝟓𝟓𝟓
e) − 𝟑𝟑𝟑𝟑𝟑𝟑 = 𝟓𝟓𝟓𝟓𝟓𝟓
4. Fill in the empty gaps:
a)
𝟐𝟐, 𝟒𝟒𝟒𝟒
𝟏𝟏, 𝟑𝟑 𝟎𝟎
+𝟑𝟑, 𝟏𝟏𝟏𝟏
, 𝟗𝟗𝟗𝟗𝟗𝟗
b)
𝟔𝟔, 𝟕𝟕
− , 𝟐𝟐𝟐𝟐
𝟏𝟏, 𝟐𝟐𝟐𝟐𝟐𝟐
c)
𝟓𝟓, 𝟑𝟑𝟑𝟑
𝟓𝟓, 𝟏𝟏 𝟔𝟔
+ , 𝟓𝟓𝟓𝟓
𝟐𝟐 , 𝟐𝟐𝟐𝟐𝟐𝟐
d)
𝟔𝟔, 𝟖𝟖
− , 𝟓𝟓 𝟑𝟑
𝟏𝟏, 𝟗𝟗𝟗𝟗𝟗𝟗
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

3. 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

4. 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