Page 91 - Math Smart - 7

0 Nick has 2.6 kg of sugar. He wants to pack the sugar into 4 packets of the
same mass. How many grams of sugar should Nick pack in each packet?
Divide 2.6 by 4.

0. 65
2 . 6 0- This zero is added to help you divide.
2 . 4
2 0
Remember 1 kg = 1000 g
2 0
Convert to the required
0.65 kg X 1000 = 650 g unit of measurement.
Nick should pack 650 g of sugar in each packet.

Check My

Understanding

O Divide.
a) 4.3-fl b) 6.3^3 c) 4.8-5-4 d) 5.5-5-5 e) 14.2^2
f) 0.6-r 2 g) 2.5^5 h) 0.9 -5- 9 i) 3.6 4 j) 1.4^2
0 Divide.
a) 2.34-rl b) 2.32^2 c) 6.06-5-6 d) 0.27 -r 3 e) 5.35 -r 5
f) 6.21 -^3 g) 6.06^4 h) 0.54-f 6 i) 9.36 V 9 j) 4.32 -r 8
0 Divide.
a) 0.8-r 8 b) 45.9-r 5 c) 0.36-r 6 d) 14.35 V 7 e) 9.09 ^ 2
f) 9.09-r 3 g) 49.14-^7 h) 25.75 -5- 5 I) 4.02^5 j) 18.23-5-5
O Fill in the missing numbers.
a) -^4=1.22 b) 16.4-5- = 4.1

c) 2.24-r =1.12 d) -5-3 = 3.1
e) -r4 = 3.2 f) -5- 6 = 4.4
0 Each sheet of metal is 1.25 cm thick. If Mei stacks 7 sheets on top of each other, how thick will the
stack be?
0 Brenda has 3 travel bags. The total mass of all the bags is 9.69 kg. What is the mass of each bag if
each bag has the same mass?
0 The price of 1 kg of white rice is S$3.39. How much will
5 kg of rice cost?
A
0 factory used 60.64 kg of noodles to make 4 equal batches of noodle soup. How many
grams of noodles did the factory put in each batch of soup?
A
0 factory produces 0.5 m of copper wire every minute. How many metres of wire will
the factory produce in
a) 6 minutes?
b) 1 hour?
Jamie has 0.46 m of rope. If he cuts the rope in half, what is the length of each piece of rope?
Sam says that 4.14 -r 2 = 2.7.
Cleo says that 4.14 -2 = 2.07.
Who is correct? Give a reason for your answer.
o