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Starter Questions

Starter Questions. 3cm. Learning Objective. Revision: Column addition including adding decimals. Column subtraction including subtracting decimals. Adding Numbers. Adding Decimals. Subtracting Numbers. Subtracting Decimals. Starter Questions. Q1. Calculate.

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Starter Questions

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  1. Starter Questions 3cm

  2. Learning Objective Revision: Column addition including adding decimals. Column subtraction including subtracting decimals.

  3. Adding Numbers

  4. Adding Decimals

  5. Subtracting Numbers

  6. Subtracting Decimals

  7. Starter Questions Q1. Calculate Q2. Round to 1 decimal place 2.354. Q3. How many minutes in 3hours Q4. The answer to the question is 180. What is the question.

  8. Learning Objective Revision: Multiply two digit numbers Multiply decimal numbers.

  9. Multiplying Numbers

  10. Multiplying 2 Digit Numbers: Grid Method

  11. Multiplying 2 Digit Numbers: Grid Method

  12. Multiplying Decimal Numbers: Grid Method

  13. Starter Questions

  14. Learning Objective Revision: Use bus stop method to divide including dividing with decimal remainders.

  15. Dividing Numbers

  16. Dividing Numbers

  17. CHUNKING Now try these…

  18. Starter Questions

  19. Learning Objective Revision: Find fractions of quantities.

  20. Finding Fractions of Numbers 1 This is the numerator 3 This is the denominator • To find a fraction of a number you can do this: • Divide the whole number by the denominator. • Multiply this answer by the numerator. 1 1) 15 ÷ 3 = 5 2) 5 x 1 = 5 of 15 = 5 3

  21. Linking Fractions and Division Fractions and dividing are very similar. The denominator is what you divide by. Click on the fractions to match them to the division questions: 1/3 of 24 24 ÷ 3 = 8 1/6 of 24 24 ÷ 2 = 12 1/2 of 24 24 ÷ 8 = 3 1/8 of 24 24 ÷ 6 = 4

  22. Finding More Fractions of Numbers Divide the whole number by the denominator Multiply this answer by the numerator. Answer 2/3 of 21 14 21 ÷ 3 = 7 7 x 2 = 14 3/5 of 20 12 20 ÷ 5 = 4 4 x 3 = 12 3/4 of 16 12 16 ÷ 4 = 4 4 x 3 = 12 • Remember: • Divide the whole number by the denominator. • Multiply this answer by the numerator.

  23. Finding More Fractions of Numbers Divide the whole number by the denominator Multiply this answer by the numerator. Answer 2/6 of 30 10 30 ÷ 6 = 5 5 x 2 = 10 3/10 of 50 15 50 ÷ 10 = 5 5 x 3 = 15 2/3 of 600 400 600 ÷ 3 = 200 200 x 2 = 400 • Remember: • Divide the whole number by the denominator. • Multiply this answer by the numerator.

  24. Finding Fractions of NumbersClick on the question to reveal the answer ¾ of 40 ¼ of 80 3/20 of 80 30 20 12 7/10 of 30 2/5 of 25 5/9 of 18 21 10 10 1/3 of 15 4/6 of 54 3/8 of 24 5 36 9 4/5 of 50 2/7 of 28 5/6 of 42 40 8 35

  25. Using a Calculator to Find Fractions of NumbersClick on the question to reveal the answer ¾ of 50 ¼ of 90 3/20 of 360 37.5 22.5 54 2/5 of 315 5/9 of 351 6/7 of 147 126 195 126 1/3 of 189 2/6 of 546 3/8 of 152 63 182 57

  26. Starter Questions Q1. Convert to 24hr clock 8.15am 10.02pm Q2. Round to 1 decimal place 103.525 Q3. How many minutes in 6 hours Q4. Find the time difference between 5.12am and 2.34pm

  27. Learning Objective Revision: Find percentages of numbers.

  28. Finding Percentages of Numbers This box represents 40 30% of 40 100% = 40 90% = 36 80% = 32 • Find 10% first. This can be done by dividing the number by 10 • 10% of 40 = 4 • 2) If 10% = 4, then 30% = 12 (there are 3 lots of 10% in 30%) 70% = 28 60% = 24 50% = 20 40% = 16 30% =12 20% = 8 10% = 4 30% of 40 = 12

  29. Finding Percentages of Numbers Find 10% first Multiply this by how many lots of 10% there are Answer 30% of 60 18 60 ÷ 10 = 6 6 x 3 = 18 60% of 20 12 20 ÷ 10 = 2 2 x 6 = 12 20% of 200 40 200 ÷ 10 = 20 20 x 2 = 40 • Remember: • To find 10%, first divide the whole number by 10.

  30. Finding Smaller Percentages of Numbers This box represents 300. Each square is worth 1% 6% of 300 • Find 1% first. This can be done by dividing the number by 100 • 1% of 300 = 3 • 2) If 1% = 3, then 6% = 18 (there are 6 lots of 1% in 6%) 3 6 9 12 15 18 6% of 300 = 18

  31. Finding Percentages of Numbers Find 1% first Multiply this by how many lots of 1% there are Answer 6% of 400 24 400 ÷ 100 = 4 4 x 6 = 24 15% of 80 12 0.8 x 15 = 12 80 ÷ 100 = 0.8 7% of 500 35 500 ÷ 100 = 5 5 x 7 = 35 • Remember: • To find 1%, first divide the whole number by 100.

  32. Finding Percentages of NumbersClick on the question to reveal the answer 20% of 40 99% of 200 3% of 1,000 8 198 30 20% of 30 30% of 50 5% of 200 6 10 15 2% of 500 40% of 80 12% of 600 10 32 72 70% of 60 60% of 20 2% of 20,000 42 12 400

  33. Using a Calculator to Find Percentages of NumbersClick on the question to reveal the answer 20% of 450 97% of 170 6% of 2,500 90 164.9 150 44% of 560 15% of 450 18% of 820 147.6 67.5 246.4 8% of 600 30% of 3,370 23% of 4,400 1,012 48 1,011

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