Multiply and Divide Decimals by Powers of 10
What is 3.5 x 10?
35
How does 0.25 compare to 25 in terms of place value?
It is 100 times less
If a bookshelf is 1.9 metres long and there are 5 shelves, estimate the total length in metres.
10 m
Calculate 2.75 ÷ 100.
0.0275
Express 0.032 as a multiple of 0.32.
It is 10 times less
or
0.032 x 10 = 0.32
A pencil is 0.15 metres long. Estimate how many pencils would measure a total of around 2 metres.
13 or 14
If you multiply 4.2 by 1000, what is the result?
4200
Compare 2.5 to 0.25 using place value.
It is 10 times more
If a ribbon is 0.8 metres long, estimate how many ribbons are needed for a total length of approximately 6 metres.
7 or 8
Divide 6.8 by 1000
0.0068
Show how 0.042 is related to 4.2 in terms of place value
It is 100 times less
Or
0.042 x 100 = 4.2
Estimate the total distance in metres if you walk 3 times around a park path where each lap is 0.35 kilometres.
1000 m
What is the product of 5.6 and 10 000?
56 000
What is the relationship between 0.75 and 75 based on place value?
It is 100 times less
OR
0.75 x 100 = 75
Estimate the total volume in litres if you have 9 bottles of water, each containing 0.75 litres.
6.5 L - 7.5 L