Form 2 Mathematics Notes +exercise By Kelvin - Chapter 1-7 5w6i40

Revision Mathematics Chapter 1-7 (12/7/17) a) -3.7×[6-(-1.4)]= b) 10.39-2.8÷(-3.5)=

5

c) 6.245-(-3.12)×6=

3

d) -0.42×7-(-8)=

e) In a Mathematics quiz, every participant is required to answer 20 question. 5 marks are awarded for a correct answer and 3marks are deducted for a wrong answer. Nora answered 16 questions correct and Ali answered 13 questions correct. Find the difference of their marks.

f) A diver was at 10.4m below sea g) The price of a unit of a share level. If he rise 2 m every falls by 40 sen per day for three second, find his new position, consecutive days. If the price of in m, after 7.2 seconds. Give the share now is RM 4, find the your answer as decimal. initial price of a unit for the share.

k) (7 ÷√

)2

l) (6 -√49 )

m) Mr Lee wants to put a fence n) The total of all the faces of a around 3 sides of a square garden cube is 96cm2. What is the that has an area of 225m2. What length of its side? is the length of the fence needed?

o) A cube X and a cuboid Y are made of metal are melted and recast to form a cube Z. The volume of cube X is 64cm 3 and the volume of cuboid Y is 448cm3. Calculate the length of the edges for cube Z.

p) 6xy×5y÷3xy =

q) 4h3×9pqr÷12h2p =

s) Salleh wants to go to a town which is 5p km away. After travelling 7q km, how far is he from his destination?

r) 12p2q2×9pqr÷(-3p2q)=

t) In an isosceles triangle PQR, PQ=(3x+y)cm dan QR=(5yx)cm. if PR=QR, find the perimeter of the triangle PQR.

h) The temperature in a temperature room at 1300 hours last Sunday was rose 60C. The temperature dropped 20C every hour. What was the temperature at 0500 hours on the next day? u) 288x2y2 sweets are put into small packets with 9xy sweet each. Lina takes 9x packets of the sweets. How many packets are left? i) (√0.5 −3√−0.125)2

j) √8 × √18

a)

5𝑥 6

--13=7

b) 5(x-7)=3(x+9)

c)

4𝑥 5

+2=7

d) 2(x+7)=5x8

e) Three times the sum of y f) The area of a triangle is 80cm2. If its and 7 is equal to 42. Find base is 8cm and its height is (6+k)cm, the value of y. find the value of k.

g) A total amount of RM720 is divided among Anne, Bali and Chin. The amount of money received by Anne is twice the amount of money by Bali. The amount of money received by Bali is RM80 less than the amount of money by Chin. Find the amount of the money received by each of them.

Notes Important: Chapter 1: BODMAS Rule +/-/×/÷ Chapter 2: Squares, square roots, cubes and cube roots

Chapter 3-5:

Chapter 4-5 (basic knowledge)

Chp3 Unknown, coefficient and algebraic

Length, mass, money, time, area and volume.

term chp4 equal and not equal to Chp5 Ratio, Rates and Proportions Chapter 6: i)formula (long) long2=short2-short2

ii) formula (short) short2=long2-short2

Chapter 7: draw line with cm and angle in (triangle and parallogram)