Page 23 - 新思维数学学生用书2 样章
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1 Numbers to 100
2 Use what you know about ordinal numbers to find
each monster.
Start at the bus stop. Draw a ring around the 2nd monster.
Draw a line under the 6th monster. Tick the 3rd monster.
Bus
stop
Worked example 3
A number sequence starts at 58.
It counts back in twos and stops at 50.
What are the numbers in this sequence?
All the numbers
have 5 tens and they
are even.
Answer: 58, 56, 54, 52, 50.
3 A number sequence starts at 37.
It counts on in tens and stops at 77.
What are the numbers in the sequence?
4 What can you say about all the numbers in the sequence
you wrote for question 3?
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