GRADE SIX MATHEMATICS

Last Week’s Answers

Exercise 1 1. 350 6. $ 2800

Exercise 2 1. 244.2

Exercise 3 1. 0.8, 7/10, 3 % 4. 0.95, 70 %, 3/10

Exercise 4 1. Rectangle 4. Right triangle 7. Trapezoid 3. $ 750 8. $ 3000

3. 1.751 4. 24 cm 9. 81 kg

2. 30 %, 0.25, 1/5 5. 9/10, 75 %, 0.06

4. 12.2 3. 4/5, 15 %, 0.02

2. Isosceles triangle 5. Octagon 8. Pentagon 5. 6 weeks 10. 600 pupils

5. 1.45 3. Square 6. Parallelogram 9. Hexagon

Hello boys and girls, I hope that you had a great week at school. Last week calculated percentage decrease. We added and subtracted decimals, and compared percentages, fractions, and decimals. You also named some plane shapes. This week we will continue to do some exercises with decimals. We will also complete some revision examples. Please work carefully.

► To multiply decimals by 10 simply move the decimal point ONE

step to the right. (ten has ONE zero) ► To multiply decimals by 100 simply move the decimal point TWO

steps to the right. (one hundred has TWO zeros)

Examples:

2. 2 dozen 7. 17

2. 16.74

Multiplying decimals by 10 or 100

93.45 x 10 = 934.5 93.45 x 100 = 9 345 2. What is the place value of the 1 in the numeral 199 990? (A) 100 (B) 1 000 (C) 10 000 (D) 100 000

3. What is the smallest number that can be divided by 3 and 8 leaving a remainder of 2? (A) 8 (B) 12

4. How much must be added to 188 to make 402. (A) 590 (B) 386 (C) 314

5. √49 is closest to ……. (A) 10.3 (B) 9.1

6. Which of the whole numbers is exactly divisible by 5? (A) 13 350 (B) 9 791 (C) 7 804 (D)

7. (A) Cone

This solid figure has square and rectangular surfaces.

8. Which of these numbers has only itself and one as its factors? (A) 3 (B) 4 (C) 6 (D) 8

9. Given A = {4,5,6} and B = {6,7,8}. The set A intersect Set B is (A) {4,5,6,7,8} (B) {5,6,7} (C) {6,7} (D) {6}

10 What is the new price for a bag if the original price of $6,600.00 was increased 331/3% ? (A) $9,900.00 (B) $ 2,200.00 (C) $8,800.00

11. A right triangle has one angle measuring 27 0 . What is the size of the third angle? (A) 1530

12. 12 ÷ 4 x 3 = (A) 1

13 A rectangular aquarium measures 60 cm by 35cm. What is the distance around its bottom? (A) 190 (B) 95

14 Bananas are shared in a ratio of 3:5. What fraction of the bananas is given to the person with the larger share? (A) 3/8 (B) 5/8 (C) 3 /5

15. 0.2 x 0.04 = (A) 0.008

16. A dress is priced at $4,000.00. What is the price after 25 % is reduced? (A) $ 800

17. The average of 5 numbers is 61. What is the total? (A) 12.2 (B) 72 (C) 305

18. Which of these shapes is a pentagon? 19. A line drawn through the centre of a circle to one point on the circumference is the …….. (A) diameter (B) radius

20.

(B) 127 0

(B) 0.08 (B) $ 3,000

Patrick travelled for three hours at an average speed of 40 kmph. How many kilometres did he drive? (A) 4 (B) 10 (C) 44

Goodbye boys and girls. (C) 26 (C)

90 0 (C) 21 (C) $4,800 (C) segment (D) 48 3 853 (D) $200.00

(D) 63 0 (D) 1.9

(D) 5 /5 (D) $6,400

(D) 335 (D) sector (D) 120