Conversion of Units of Measure for Length - Cycle 3

You need to know the equivalencies between units of measure for length before learning to make conversions.

To see these equivalences, you can read the concept sheet Units of Measure for Length.

Follow these steps to convert a length measurement to a smaller unit:

1. I find the column with the unit of measure of the starting number.
2. In this column, I write the digit that is in the ones position.
3. I write the remaining digits, one per column, of the number. If there is a decimal point, I write it too.
4. I find the column of the new unit of measure.
5. If there is a decimal point, I move it to the right of the column of the new unit of measure.
6. I put a 0 in each empty column up to the column of the new unit of measure.

Convert 459 m into cm.

I find the column with the unit of measure of the starting number.
In this column, I write the digit that is in the ones position.
I write the remaining digits, one per column, of the number. If there is a decimal point, I write it too.
I locate the column of the new unit of measure.
If there is a decimal point, I move it to the right of the column of the new unit of measure.	Since there is no decimal point, I skip to the next step.
I put a 0 in each empty column up to the column of the new unit of measure.

459 m is equivalent to 45 900 cm.

Convert 5.6 km into m.

I find the column with the unit of measure of the starting number.
In this column, I write the digit that is in the ones position. In the number 5.6, the digit in the ones position is 5.
I write the remaining digits, one per column, of the number. If there is a decimal point, I write it too.
I locate the column of the new unit of measure.
If there is a decimal point, I move it to the right of the column of the new unit of measure.
I put a 0 in each empty column up to the column of the new unit of measure.

5.6 km is equivalent to 5600 m.

You need to know the equivalencies between units of measure for length before learning to make conversions.

To see these equivalences, you can read the concept sheet Units of Measure for Length.

I follow these steps to convert a length measurement to a larger unit:

1. I find the column with the unit of measure of the starting number.
2. In this column, I write the digit that is in the ones position.
3. I write the remaining digits, one per column, of the number. I also write the decimal point, if there is one.
4. I find the column of the new unit of measure.
5. I place the decimal point to the right of the column of the new unit of measure.
6. I put a 0 if there is no number in the new unit column or in any of the empty columns to the right of the decimal point.

Convert 85 000 cm into m.

I find the column with the unit of measure of the starting number.
In this column, I write the digit that is in the ones position. In the number 85 000, the digit in the ones position is 0.
I write the remaining digits, one per column, of the number. I also write the decimal point, if there is one.
I find the column of the new unit of measure.
I place the decimal point to the right of the column of the new unit of measure. Since there is no decimal point in the number 85 000, I add one.
I put a 0 if there is no number in the new unit column or in any of the empty columns to the right of the decimal point. Since there is a number in the new unit column and in the columns to the right of the decimal point, I don't have to do this step.

85 000 cm is equivalent to 850 m.

Convert 795 m into km.

I find the column with the unit of measure of the starting number.
In this column, I write the digit that is in the ones position. In the number 795, the digit in the ones position is 5.
I write the remaining digits, one per column, of the number. I also write the decimal point, if there is one.
I find the column of the new unit of measure.
I place the decimal point to the right of the column of the new unit of measure.
I put a 0 if there is no number in the new unit column or in any of the empty columns to the right of the decimal point.

795 m is equivalent to 0.795 km.

You need to know the equivalencies between units of measure for length before learning to make conversions.

To see these equivalences, you can read the concept sheet Units of Measure for Length.

Follow these steps to convert a length measurement to a smaller unit:

1. Identify the starting unit of measure of the number.
2. Determine the new unit of measure.
3. Multiply the measurement by 10 for each smaller unit of measure until the new unit of measure is reached.

Convert 7.5 km into m.

Identify the starting unit of measure of the number. The starting measurement unit is kilometres.	7,5 km
Determine the new unit of measure. The new unit of measure is metres.	7,5 km = ? m
Multiply the measurement by 10 for each smaller unit of measure until the new unit of measure is reached. To go from km to m, I multiply the measurement by 10, 3 times. 7,5 km × 10 = 75 hm 75 hm × 10 = 750 dam 750 dam × 10 = 7 500 m To save some time, I can also multiply by 1000. 7,5 km × 1 000 = 7 500 m

7.5 km is equivalent to 7500 m.

You need to know the equivalencies between units of measure for length before learning to make conversions.

To see these equivalences, you can read the concept sheet Units of Measure for Length.

Follow these steps to convert a length measurement to a larger unit:

1. Identify the starting unit of measure of the number.
2. Determine the new unit of measure.
3. Divide the measurement by 10 for each larger unit of measure until the new unit of measure is reached.

Convert 450 dm into km.

Identify the starting unit of measure of the number. The starting unit of measure is decimetres.	450 dm
Determine the new unit of measure. The new unit of measure is kilometres.	450 dm = ? km
Divide the measurement by 10 for each larger unit of measure until the new unit of measure is reached. To go from dm to km, divide the measurement by 10, 4 times. 450 dm ÷ 10 = 45 m 45 m ÷ 10 = 4,5 dam 4,5 dam ÷ 10 = 0,45 hm 0,45 hm ÷ 10 = 0,045 km To save some time, I can also divide by 10 000. 450 dm ÷ 10 000 = 0,045 km

450 dm is equivalent to 0.045 km.