1 ESO - Unit 1 - Exercises 1.4
- 1. UNIT 01 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 1º ESO Exercises - 1.4.1
- 2. UNIT 01 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 1º ESO Exercises - 1.4.2
- 3. UNIT 01 September http://www.coolmath-games.com/0-math-lines http://www.coolmath-games.com/0-number-twins Axel Cotón Gutiérrez Mathematics 1º ESO Exercises - 1.4.3
- 4. UNIT 01 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 1º ESO Exercises - 1.4.4