Page 15 - 新思维数学学生用书3 样章
P. 15
1 Numbers to 1000
1.2 Comparing and ordering
We are going to …
• compare numbers by looking at the value of each digit in turn
• use the inequality symbols is less than, <, and is greater than, >,
when comparing two numbers
• order numbers from smallest to greatest and from greatest to smallest.
When you know the value of each digit in a 3-digit number,
you can compare numbers and use what you find out to put
them in order. You can also estimate where a number
belongs on the number line.
digit inequality, 375 is less than
inequalities 475. 375 comes before
is greater than, > 475 on the number
is less than, < line.
symbol
Exercise 1.2
1 Complete these pieces from a 1000 square.
320 890 650
14