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Maths Resources & WorksheetsYear 4 Maths LessonsAutumn Block 4 (Multiplication and Division)03 Divide by 10 › Divide By 10 Year 4 Multiplication and Division Learning Video Clip

# Divide By 10 Year 4 Multiplication and Division Learning Video Clip

## Step 3: Divide By 10 Year 4 Multiplication and Division Learning Video Clip

Hamish and Syeda make their way to the Winter Games opening ceremony and watch from the stands. They calculate the number of nations competing, the number of people in stadium blocks and the number of fireworks used in a second, by dividing all by 10.

More resources for Autumn Block 4 Step 3.

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Discussion points for teachers

1. Help Hamish to calculate how many countries are taking part in the Winter and Parawinter Games.
Discuss the ration of 10 people for 1 country. Discuss what we should divide the total of people by to calculate how many countries are taking part.
870 ÷ 10 = 87 countries

2. How many rows could each block have?
Discuss the maximum and minimum capacity the blocks. Discuss how many people are in a row and how this can be used to work out how many rows each block could have. This question is open for the children to explore.
250 to 320 people = 25 to 32 rows in a block.

3. South if Korea has one thousand, seven hundred and eighty people watching, how many does the UK have?
Discuss converting the number in words back into digits to make the calculation easier. Discuss efficient strategies for dividing by ten even though the number is slightly larger.
one thousand, seven hundred and eighty = 1,780 South Koreans, that means there are 178 British people watching.

4. I bet you can’t match them to the athlete’s nationality from my clues.
Discuss which clues will help us most. Discuss which groups of numbers seem linked and how we can use that to help with the clues. Discuss working systematically through the clues and eliminating ones that have already been used.
Norwegian = 76 ; Canadian = 67 ; American = 670 ; Danish = 6,700 ; Chinese = 760

5. How many fireworks will they be using every second?
Discuss the similarity between this problem and the stadium block problem and how we can use that to help us solve this problem.
760 and 1,090 fireworks every 10 seconds = between 76 and 109 fireworks every second.

Optional discussion points:
Discuss with children the Procession of Nations during similar world sporting events.

National Curriculum Objectives

Mathematics Year 4: (4C6a) Recall multiplication and division facts for multiplication tables up to 12 × 12

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