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Level 1 Number Starters 1) General Number : Answers

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Presentation on theme: "Level 1 Number Starters 1) General Number : Answers"— Presentation transcript:

1 Level 1 Number Starters 1) General Number : Answers
2) Integers : Answers 3) BEDMAS : Answers 4) Multiples, Factors & Primes : Answers 5) Powers & Roots : Answers 6) Rounding : Answers 7) Standard Form : Answers 8) Calculator Use : Answers 9) Fractions : Answers 10) Decimals, fractions Percentages : Answers 11) Fractions & % of things : Answers 12) % change : Answers 13) Increase, Decrease by a percentage : Answers 14) Profit & Loss : Answers 15) Ratio : Answers 16) Mixed Questions : Answers

2 General Number Home Page 1) 3 + 4 × 9 = 2) Square of 6 =
1) × 9 = 2) Square of 6 = 3) The factors of 10 = 4) Round $3.45 to the nearest whole dollar 5) 75% as a decimal = 6) Three quarters of $36 = 7) Expand 4(w + 2) = 8) Simplify w3 × w6 = 9) Solve w + 8 = 23 10) Simplify 4w + 13g + 8w – 6g =

3 General Number: Answers
Home Page 1) × 9 = 2) Square of 6 = 3) The factors of 10 = 4) Round $3.45 to the nearest whole dollar 5) 75% as a decimal = 6) Three quarters of $36 = 7) Expand 4(w + 2) = 8) Simplify w3 × w6 = 9) Solve w + 8 = 23 10) Simplify 4w + 13g + 8w – 6g =

4 Integers Home Page 1) -4 + -9 = 2) (-3)2 = 3) 5 ÷ -2 =
1) = 2) (-3)2 = 3) 5 ÷ -2 = 4) 12 – = 5) – 9 = 6) 20% as a decimal = 7) Expand 4(g + 1) = 8) Simplify m5 × m3 = 9) Solve w + 5 = 32 10) Simplify 3p + 3m + 2p + 8m =

5 Integers: Answers Home Page 1) -4 + -9 = 2) (-3)2 = 3) 5 ÷ -2 =
1) = 2) (-3)2 = 3) 5 ÷ -2 = 4) 12 – = 5) – 9 = 6) 20% as a decimal = 7) Expand 4(g + 1) = 8) Simplify m5 × m3 = 9) Solve w + 5 = 32 10) Simplify 3p + 3m + 2p + 8m =

6 BEDMAS Home Page 1) 5 – 3 × 2 + 1 = 2) 3 + 42 = 3) 2 + 10 ÷ 5 + 2 = 4)
1) 5 – 3 × = 2) = 3) ÷ = 4) 5) 0.8 as a percentage = 6) The first 3 multiples of 6 7) Expand 3(2k + 5) = 8) Simplify w10 ÷ w2 = 9) Solve 2w + 8 = 20 10) Simplify 4w + 13g + 8w – 6g =

7 BEDMAS: Answers Home Page 1) 5 – 3 × 2 + 1 = 2) 3 + 42 =
1) 5 – 3 × = 2) = 3) ÷ = 4) 5) 0.8 as a percentage = 6) The first 3 multiples of 6 7) Expand 3(2k + 5) = 8) Simplify w10 ÷ w2 = 9) Solve 2w + 8 = 20 10) Simplify 4w + 13g + 8w – 6g =

8 Multiples Factors & Primes
Home Page 1) Factors of 18 = 2) Factors of 60 = 3) Highest common factors of 24 & 30 4) Next prime number after 20 = 5) as a percentage = 6) 7) Expand w(w + 8) = 8) Simplify 2w × 5w = 9) Solve 2w – 5 = 11 10) Simplify 2g + 3a + 12g – 6a =

9 Multiples Factors & Primes: Ans
Home Page 1) Factors of 18 = 2) Factors of 60 = 3) Highest common factors of 24 & 30 4) Next prime number after 20 = 5) as a percentage = 6) 7) Expand w(w + 8) = 8) Simplify 2w × 5w = 9) Solve 2w – 5 = 11 10) Simplify 2g + 3a + 12g – 6a =

10 Powers & Roots Home Page 1) 62 = 2) 54 = 3) 4) 5) 6) -9 + 5 × -3 =
1) 62 = 2) 54 = 3) 4) 5) 6) × -3 = 7) Expand g(g + 5) = 8) Highest common factor of 42 & 65 = 9) Expand 2w(3w + 1) = 10) Simplify g2 × 2g3 =

11 Powers & Roots: Answers
Home Page 1) 62 = 2) 54 = 3) 4) 5) 6) × -3 = 7) Expand g(g + 5) = 8) Highest common factor of 42 & 65 = 9) Expand 2w(3w + 1) = 10) Simplify g2 × 2g3 =

12 Rounding Home Page 1) Round $3.53 to the nearest dollar
2) Round to 1dp 3) Round to 1dp 4) Round to 2sf 5) Round to 2sf 6) 7) to 3dp 8) Factors of 45 = 9) Expand k(4k – 9) = 10) Simplify 4m2 × 5m =

13 Rounding: Answers Home Page 1) Round $3.53 to the nearest dollar
2) Round to 1dp 3) Round to 1dp 4) Round to 2sf 5) Round to 2sf 6) 7) to 3dp 8) Factors of 45 = 9) Expand k(4k – 9) = 10) Simplify 4m2 × 5m =

14 Standard Form A Home Page 1) Write 450 000 000km in standard form
2) Write m in standard form 3) Write 2.66 × 106 as a normal number 4) Write 5 × 10-4 as a normal number 5) 2.6 × × × = 6) to 2dp = 7) How many sides in a pentagon? 8) Round to 3dp 9) Expand 2h(h + 3) = 10) Simplify 2m × 9m3 =

15 Standard Form A: Answers
Home Page 1) Write km in standard form 2) Write m in standard form 3) Write 2.66 × 106 as a normal number 4) Write 5 × 10-4 as a normal number 5) 2.6 × × × = 6) to 2dp = 7) How many sides in a pentagon? 8) Round to 3dp 9) Expand 2h(h + 3) = 10) Simplify 2m × 9m3 =

16 Standard Form B Home Page 1) Write 108 000km in standard form
2) Write m in standard form 3) Write 2.46 × 105 as a normal number 4) Write 1.04 × 10-6 as a normal number 5) 2.6 × × 104 = 6) to 2sf = 7) How many sides in a nonagon? 8) 68% as a decimal = 9) Expand 4g(2g + 5) = 10) Simplify 20m5 ÷ 2m3 =

17 Standard Form B: Answers
Home Page 1) Write km in standard form 2) Write m in standard form 3) Write 2.46 × 105 as a normal number 4) Write 1.04 × 10-6 as a normal number 5) 2.6 × × 104 = 6) to 2sf = 7) How many sides in a nonagon? 8) 68% as a decimal = 9) Expand 4g(2g + 5) = 10) Simplify 20m5 ÷ 2m3 =

18 Fractions Home Page 1) 2) 3) 4) 5) 7.4 × 1023 × 6.4 × 1027 =
5) 7.4 × × × = 6) to 2sf = 7) Simplify 3m m – 3 8) Write 6.96 × 107 as a normal number 9) The angles in a triangle add to? 10) Is ( ) a prime number? Why?

19 Fractions: Answers Home Page 1) 2) 3) 4) 5) 7.4 × 1023 × 6.4 × 1027 =
5) 7.4 × × × = 6) to 2sf = 7) Simplify 3m m – 3 8) Write 6.96 × 107 as a normal number 9) The angles in a triangle add to? 10) Is ( ) a prime number? Why?

20 Fraction, Decimal, Percentages
Home Page 1) as a percentage = 2) 35% as a decimal and fraction = 3) as a percentage 4) as a percentage and simplified fraction 5) Simplify 4w2 + 3m2 = 6) to 2sf = 7) Simplify 5g2 × 2g = 8) Write × 10-3 as a normal number 9) The angles inside a quadrilateral add to? 10) Is ( ) a prime number? Why?

21 Fraction, Decimal, Percentages: Answers
Home Page 1) as a percentage = 2) 35% as a decimal and fraction = 3) as a percentage 4) as a percentage and simplified fraction 5) Simplify 4w2 + 3m2 = 6) to 2sf = 7) Simplify 5g2 × 2g = 8) Write × 10-3 as a normal number 9) The angles inside a quadrilateral add to? 10) Is ( ) a prime number? Why?

22 % of… and Fractions of… Home Page 1) of $20 = 2) 28% of $420 =
4) Which is more: 34% of $268, or ¼ of $350 5) Simplify 8g2 × g3 = 6) to 2dp = 7) Simplify 20g6 ÷ 2g2 = 8) Write in standard form 9) as a percentage and simplified fraction 10) List the common factors of 28 & 48

23 % of… and Fractions of… Answers
Home Page 1) of $20 = 2) 28% of $420 = 3) of 770 = 4) Which is more: 34% of $268, or ¼ of $350 5) Simplify 8g2 × g3 = 6) to 2dp = 7) Simplify 20g6 ÷ 2g2 = 8) Write in standard form 9) as a percentage and simplified fraction 10) List the common factors of 28 & 48

24 % Change Home Page 1) A shirt changes price from $20 to $24. What is the percentage change? 2) A tie changes price from $18 to $14. What is the percentage change? 3) 45% of $415 = 4) Which is more: 17% of $410, or 3/5 of $115 5) Simplify 3h5 × 4h2 = 6) to 2dp = 7) Simplify 28m5 ÷ 4m4 = 8) 9) as a percentage and simplified fraction 10) List the highest common factor of 60 & 80

25 % Change: Answers Home Page
1) A shirt changes price from $20 to $24. What is the percentage change? 2) A tie changes price from $18 to $14. What is the percentage change? 3) 45% of $415 = 4) Which is more: 17% of $410, or 3/5 of $115 5) Simplify 3h5 × 4h2 = 6) to 2dp = 7) Simplify 28m5 ÷ 4m4 = 8) 9) as a percentage and simplified fraction 10) List the highest common factor of 60 & 80

26 % Increase & Decrease Home Page 1) Increase $34 by 15%
2) Decrease $182 by 12% 3) 0.3% of $2840 = 4) Which is less: 55% of $18, or 4/9 of $23 5) Expand 3g(4g + 9) = 6) to 4sf = 7) A price to $44 (originally $64). What is the percentage change? 8) 9) Factorise 6m + 12 10) Solve 3m – 4 = 20

27 % Increase & Decrease: Answers
Home Page 1) Increase $34 by 15% 2) Decrease $182 by 12% 3) 0.3% of $2840 = 4) Which is less: 55% of $18, or 4/9 of $23 5) Expand 3g(4g + 9) = 6) to 4sf = 7) A price to $44 (originally $64). What is the percentage change? 8) 9) Factorise 6m + 12 10) Solve 3m – 4 = 20

28 Profit & Loss Home Page 1) Increase $18 by 12% 2) Decrease $440 by 58%
4) A $4500 car depreciates by 18% is now worth? 5) GST 12.5 % is added onto a price of $ What is the new price? 6) to 4sf = 7) A price decreases from $450 to $320. What is the percentage change? 8) to 3sf 9) Expand 5m(3m – 5) 10) Solve 9 + 3m = 30

29 Profit & Loss: Answers Home Page 1) Increase $18 by 12%
2) Decrease $440 by 58% 3) 14.5% of $655 = 4) A $4500 car depreciates by 18% is now worth? 5) GST 12.5 % is added onto a price of $ What is the new price? 6) to 4sf = 7) A price decreases from $450 to $320. What is the percentage change? 8) to 3sf 9) Expand 5m(3m – 5) 10) Solve 9 + 3m = 30

30 Ratio Home Page 1) Simplify the ratio 42:60
2) Share $60 into the ratio 2:3 3) Divide $48 into the ratio 1:3:2 4) A $1200 bike is sold for a 17% profit. How much did it sell for? 5) GST 12.5 % is added onto a price of $14.50 What is the new price? 6) to 2sf = 7) A price changes from $50 to $65. What is the percentage change? 8) 27% of $270 = 9) Decrease $98 by 18% 10) Increase 4.24 × 1012 by 28%

31 Ratio: Answers Home Page 1) Simplify the ratio 42:60
2) Share $60 into the ratio 2:3 3) Divide $48 into the ratio 1:3:2 4) A $1200 bike is sold for a 17% profit. How much did it sell for? 5) GST 12.5 % is added onto a price of $14.50 What is the new price? 6) to 2sf = 7) A price changes from $50 to $65. What is the percentage change? 8) 27% of $270 = 9) Decrease $98 by 18% 10) Increase 4.24 × 1012 by 28%

32 Mixed Q Home Page 1) Simplify the ratio 18:40
2) Share $54 into the ratio 7:2 3) -4 – ÷ 5 = 4) A $14.50 rabbit is sold for a 32% loss. How much did it sell for? 5) 26% of ‘x’ is $52. What is x = 6) to 1dp = 7) A price drops from $84 to $66. What is the percentage change? 8) 0.4% of $18 = 9) Increase $1450 by 23% 10) Decrease × 1084 by 15.8%

33 Mixed Q: Answers Home Page 1) Simplify the ratio 18:40
2) Share $54 into the ratio 7:2 3) -4 – ÷ 5 = 4) A $14.50 rabbit is sold for a 32% loss. How much did it sell for? 5) 26% of ‘x’ is $52. What is x = 6) to 1dp = 7) A price drops from $84 to $66. What is the percentage change? 8) 0.4% of $18 = 9) Increase $1450 by 23% 10) Decrease × 1084 by 15.8%


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