Page 22 - 新思维数学活动用书2 样章
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1.3 Comparing and ordering numbers
1 Estimate and show where 15, 43 and 78 are on this number line.
0 10 20 30 40 50 60 70 80 90 100
2 Draw a ring around the 3rd elephant.
1st
3 Arun is last in a queue of 32 people.
Write the ordinal number for Arun’s place in the queue.
Worked example 4
A number sequence starts at 35.
It counts on in tens and stops at 65.
What are the numbers in this sequence?
All the numbers have
I used a
5 ones. They are all odd.
100 square to
help me.
35, 45, 55, 65.
Answer: 35, 45, 55, 65.
4 A number sequence starts at 42.
It counts on in tens and stops at 72.
Write the numbers in the sequence.
, , ,
21
