Page 90 - Math Smart - 7
P. 90
Check My
Understanding
Divide.
a) 32-MO b) 0.9-r 10 c) 160-f 100 d) 2.32^ 100
e) 40v10 f) 300-r 100 g) 3.04 V 10 h) 50.9^100
i) 15.3-r 10 j) 265.1 ^1000 k) 103.14-r 1000 I) 3.04^100
Fill in the blanks.
a) 26-r = 2.6 b) 14.3-r _ = 0.143 0 60.2^ _ = 60.2 d) 324 -r _ = 0.324
e) 605-r = 60.5 f) 0.14-r. = 0.014 9) 7.2- = 0.072 h) 1000 -r = 10
e Jo drinks 21 t of water in 10 days. How many litres of water does he drink each day if he drinks the
same amount every day?
o A cellphone is on sale at one tenth of its original price. If the original price of the cellphone was
$289.98, what is the sale price? Give your answer to the nearest dollar.
Inthischap,er Dividing decimals
Pupils should be able to:
• divide decimals with one
Example 6
and/or two places by
single-digit numbers
Sasha has 6.4 i of juice. She wants to share it equally between her 2 children.
How many litres of juice does each child get?
^ RECALL Divide 6.4 by 2.
To place the decimal point in the correct position in the
Find the quotient. answer, count one digit from the right in the answer.
3
2r6 4 There is one digit after the decimal point.
I
9 43.2
Each child gets 3.21 of juice.
Ben has 4.35 gigabytes of data. If Ben uses all the data in 5 days and that he
uses the same amount of data each day, how much data does he use per day?
Divide 4.35 by 5.
o Write zero to show that 4
Spotlight
cannot be divided by 5.
What is 0 5? There is I To place the decimal point in the correct position in the
nothing to be shared
0 . 8 7 < answer, count two digits from the right in the answer.
equally into 5 groups,
so zero divided by any 5|4 3 5 There are two digits after the decimal point.
4 0
number is zero.
3 5
What is 5 0? It is not 3 5
possible to divide a
number by zero. So it is
He uses 0.87 gigabytes of data per day.
undefined.

