Maths Day Two Converting between km and m

Maths ~ Day Two Converting between km and m Don’t forget to click on the ‘Present’ tab to start.

MORNING YEAR 4! Remember the slide presentation is just to guide you through the learning. It will ask you some questions but they are talking points. ON THE GREEN SLIDES ARE THE QUESTIONS YOU WILL NEED TO ANSWER IN YOUR LEARNING JOURNALS!

Write the date and the title neatly into your Home Learning Journal.

Remember that. . m stands for metre and km stands for kilometre

You should have worked out that to convert metres into kilometres you need to divide the metres by 1000. This is because 1000 m = 1 km. Can you explain what happens when you divide by 1000?

4400 ÷ 1000= 4400 ÷ 1000 = 4. 4

Now have a go at converting these measurements into km

Check your answers here: 9000 m = 9 km 3985 m = 3. 985 km

Answers. . 2 4. 5 1. 26 9. 23

The remains of an ancient Greek building were found, the area it covered measured: Length= 3. 557 km Width= 0. 098 km But the architects need the measurements in m. How would you convert them?

You should have worked out that to convert kilometres into metres you need to multiply the kilometres by 1000. This is because 1 km = 1000 We already know that when we divide by 1000 the digits move 3 places to the right, so can you now explain what happens when we multiply by 1000?

That’s right! The digits move 3 places to the left. Now let’s help the architects and convert the measurements from km to m. 3. 557 x 1000 = The digits move 3 places to the left. So… 3. 557 x 1000 = 3557

Now it’s your turn to help the architects convert the measurements from km to m. Use can draw a place value grid to check your answer. 0. 098 x 1000 =

Let’s check your answer. . 0. 098 x 1000 = 98

Complete this table in your books converting from km to m.

Answers. . .

EXTRA CHALLENGE… Can you write a talk frame explaining how to convert m to km and km to m for a year 3 child?