Page 13 - 新思维数学活动用书5 样章
P. 13
1 The number system
2 Zara has four number cards.
36.5 35.4 36.4 35.1
She rounds each number to the nearest whole number.
Which of her numbers rounds to 36?
3 Draw a line to match each number to the nearest whole number on the
number line.
9.9 10.1
8.5
10.7
7.4
8.2 9.4 11.5
7 8 9 10 11 12
4 Write a number with 1 decimal place to complete each number sentence.
rounds to 1.
rounds to 10.
Practice
5 Round these lengths to the nearest whole centimetre.
a 4.1 cm cm b 6.6 cm cm
c 10.1 cm cm d 8.5 cm cm
12
