Page 33 - Math Smart - 7

Sarah is packing party bags. She has 54 Evaluate without the use of a calculator:
sweets, 32 chocolates, and 18 lollipops. She 112
a) 6^ b)
wants each party bag to have the same
number of each candy. What is the greatest c) 1^ d) 92
number of party bags that she can make if e) 15^ f) 0^
all the candies are used?
g) Vl21 h) Vm
Mark has a bag of marbles. He wants to
i) V49 j)
share his marbles with his friends.
He can share the marbles equally between k) 52 + VIOO 1) 5^-V
8, 9 and 12 people.
Write down the smallest prime number that
He has less than 100 marbles.
is also a multiple of 29.
How many marbles does he have in the
bag? <D Write down the smallest prime number that
is also a factor of 20.
Q Hotdogs come in packages of 10, while rolls
Write down the smallest prime number that
come in either 8 or 12. What is the smallest
is also a factor of 27 and a multiple of 3.
number of packages of each you have to
buy in order to have the same number of
hotdogs and rolls?

Describe the test of divisibility for:
a) 6 b) 4
Use your tests of divisibility to work out
whether the numbers 9042, 76 543 and 124
800 are divisible by 2, 3, 4, 5, 6, 8, 9, 10 and
100. Place a tick in the cells. You do not
have to calculate the answer.

-r2 ■t3 ~4 -r5 v6 -i-8 ■t9 •f 10 ■r 100
a) 9042
b) 76 543

c) 124 800

V

number? Numbers can a
small stones as
ent ways to communicate our Ideas how many sco(
he three most common forms of
"How many" i:
count, like swe
rds — when you actually say "one" with things the
one" or "two hundred and fifty-six."
or sand or air.
rds — numbers made of letters, like
twenty-one or two hundred fifty-six. There are som(
money. Money
- numbers made of digits, for "how much" v\
21.256. "Nadia. how rr