Page 22 - 新思维数学学生用书2 样章

1.3 Comparing and ordering numbers

1.3 Comparing and ordering numbers

We are going to ...

• use what you know about place value to compare and

order numbers

• make sequences of numbers

• find out how to say and use ordinal numbers.

Now that you know about close, closer

numbers to 100, you can use extend a sequence

them to compare quantities. ordering

36 is more than 24, so there are ordinal number

more marbles in the box of 36 sequence

marbles than in the bag of 24

marbles.

24
36

Exercise 1.3

1 Show 29, 65 and 82 on this number line.

0 10 20 30 40 50 60 70 80 90 100

21