Page 11 - 新思维数学活动用书5 样章
P. 11
1 The number system
16 Look at this number line.
Write the number that goes in the box.
3 4 5
17 Heidi makes cakes for a snack bar.
a It costs $1.50 to make one chocolate cake.
How much does it cost to make 100 chocolate cakes?
b It costs $19.00 to make 100 small cakes.
How much does it cost to make 10 small cakes?
c It costs $0.75 to make a sponge cake.
How much does it cost to make 100 sponge cakes?
18 Arun and Marcus each write a decimal number between zero and one.
Arun says, ‘My number has 9 hundredths and Marcus’s number has only 7 hundredths
so my number must be bigger.’
Arun is not correct. Explain why.
10
