Page 12 - 新思维数学学生用书6 样章

1.1 Place value

Worked example 1

Write this as a decimal number.

3 + 6 + 10 + 3 + 1
1000 100 10

10 + 3 + 1 + 3 + 6 Write the terms in order of size, starting with
10 100 1000 the one with the highest place value.
tenths Put the digits in a place value grid.
hundredths

thousandths

1
1
1
10 1 10 100 1000
1 3 1 3 6

Answer: 13.136

Exercise 1.1

1 What is the value of the digit 7 in these numbers?

a 6703.46 b 213.807 c 456.702 d 60.078

2 Sonia has these five cards.

2 4 6 0

What is the smallest number, greater than 1, she can make using all her cards?

3 Find the odd one out.

1.234 1234 thousandths 12.34

123.4 hundredths 123 hundredths and 4 thousandths

Explain your answer.

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