Page 10 - 新思维数学活动用书5 样章
P. 10
1.1 Understanding place value
11 Find the missing numbers.
a 7.2 × 100 = b 0.75 × 100 = c 4.28 × 10 =
d 270 ÷ 100 = e 151 ÷ 100 = f 6.6 ÷ 10 =
12 Draw a ring around the odd one out.
368.4 tenths 368.4 3684 hundredths
36.84 368 tenths and 4 hundredths
Explain your answer.
Challenge
13 Write down the value of the digit 3 in each of these numbers.
a 72.3
b eighty-four point zero three
14 Arun has these cards.
2 3 5
Write all the numbers he can make between 0 and 40 using all four cards.
15 Write the missing numbers.
a × 0.6 = 6 b 103 ÷ = 1.03
c × 0.13 = 13 d 76 ÷ = 7.6
e × 4.1 = 410 f 0.09 × = 9
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