Adding Numbers Add these numbers together using the

Adding Numbers Add these numbers together using the formal written method of columnar addition. Estimate your answers first. a) 1142 + 288 = 1430 b) 2256 + 546 = 2802 c) 3971 + 989 = 4960 d) 4468 + 676 = 5144 e) 5299 + 1245 = 6544 f) 6770 + 2185 = 8955 g) 7143 + 3107 = 10 250 h) 8483 + 4930 = Answers 13 413 Check each answer using subtraction.

Adding Numbers Add these numbers together using the formal written method of columnar addition. Estimate your answers first. a) 1234 + 1199 = b) 2583 + 2468 = 5051 c) 3578 + 2579 = 6157 d) 4923 + 3229 = 8152 e) 5790 + 4742 = 10 532 f) 6734 + 5748 = 12 482 g) 7845 + 6327 = 14 172 h) 8951 + 7888 = 16 839 9653 + 9643 = Answers 2433 j) 9947 + 9839 = 19 296 19 786 Check each answer using subtraction.

Subtracting Numbers Subtract these numbers using the formal written method Estimate the answers first. Answers a) 1999 - 288 = 1711 b) 2856 - 946 = 1910 c) 3575 - 309 = 3266 d) 4398 - 556 = 3842 e) 5953 - 1493 = 4460 f) 6830 - 2584 = 4246 g) 7940 - 3059 = 4881 h) 8953 - 4930 = 4023 Check each answer using addition. of columnar subtraction.

Subtracting Numbers Subtract these numbers using the formal written method the answers first. Answers of columnar subtraction. Estimate a) 1192 – 1046 = 146 b) 2948 – 1934 = 1014 c) 3575 - 2309 = 1266 d) 4349 - 3586 = 763 e) 5952 - 4483 = 1469 f) 1055 6948 – 5893 = g) 7734 – 6934 = 800 h) 8938 – 7993 = 945 i) 9583 – 8943 = 640 j) 9276 - 1848 = 7428 Check each answer using addition.

Addition and Subtraction Reasoning Challenge Which 4 -digit numbers could be used to complete these calculations? ……………. . + ………………. = 2647 ……………. . + ………………. = 9843 ……………… - ………………. . = 2958 ……………. . - ………………. . = 5837

Solve Addition and Subtraction Two-Step Problems There are 4 screens in the cinema. Screen 1 can hold 259 people, screen 2 can hold 328 people, screen 3 can hold 199 people and screen 4 can hold 355 people. If the cinema were completely full, how many people would be seated? 1141 people The figures below show the number of people who were a film in each screen: Screen 1 – 109 people Screen 2 – 192 people Screen 3 – 184 people Screen 4 – 78 people During this film, how many seats were empty in the entire cinema? 1141 – 563 = 578 empty seats Answers watching the 7: 30 pm showing of

Solve Addition and Subtraction Two-Step Problems Mr and Mrs Adams have won the lottery and booked three holidays! Holiday 1 costs £ 1043. Holiday 2 costs £ 4932. Holiday 3 costs £ 2934. How much do they owe altogether? £ 8909 The holiday company offers them a discount of £ 1059 to be deducted from the total price. What is the new total they must pay? £ 7850 Answers

Solve Addition and Subtraction Two-Step Problems Park Lane School won £ 8000 in a competition run by a newspaper. The Headteacher has made a quick note of how the money has been spent so far: How much has been spent so far? £ 6895 Library books £ 1495 Cost for every child to see the pantomime £ 1695 £ 250 of new toys/equipment per class (4 classes) Outdoor seating in both playgrounds £ 2705 Answers How much is left to spend? £ 8000 – £ 6895 = £ 1105 left to spend

Solve Addition and Subtraction Two-Step Problems In a recent survey of 4000 people, it was discovered that 1938 people were left-handed and 2034 people were right-handed. The remainder said they were ambidextrous (could use either hand). How many people were ambidextrous? 4000 – 3972 = 28 people said they were ambidextrous. Answers

Solve Addition and Subtraction Two-Step Problems The factory needs to make 1934 bottles an hour. If a machine slows down and the factory only makes 1093 bottles in the hour, how many does it need to make to catch up in the next hour? 1934 – 1093 = 841 bottles in addition to the normal rate. If the machine remains slow for a further 2 hours, making the same number of bottles per hour, how many will it need to make to catch up in total? 841 + 841 = 2523 bottle in addition to the normal rate. Answers