Decimals
2 Let’s have a look at what happens when we divide 432 by 1000.
Hundredths Tenths Thousandths
Hundreds
Tens
Ones
3
4
2
Tenths
Thousandths
Hundreds
Tens
Hundredths
Ones
0
3
4
2
When I multiply by 100, every digit moves two places to the left.
Let’s Practise
1 Work out each of these calculations mentally: (a) 391 × 10 (b) 8120 × 100
(c) 109 × 10
(d) 281 × 100
(e) 3129 × 1000 (d) 1839 × 1000
2 Work out each of these calculations mentally. Use a place value table to help you. (a) 2.3 × 10 (b) 1.9 × 10
(c) 0.2 × 10
(d) 4.3 × 100
(e) 0.51 × 10
(f) 9.2 × 10
87
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01/12/2021 14:57
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