Understand what happens when a number is multiplied or divided by 10 and 100
Why this, why now
In this unit pupils will explain the relationship between multiplying and dividing a number by 10 and multiples of 10.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 14 / 25
Understand what happens when a number is multiplied or divided by 10 and 100
In this unit pupils will explain the relationship between multiplying and dividing a number by 10 and multiples of 10.
15 lessons- Understand that dividing a number by 10 makes it one-tenth times the size
- Explain the use of placeholders when multiplying whole numbers by 100
- Explain how making a factor 10 times the size affects the product
- Use place value to explain removing the zero in the ones from a multiple of ten when we divide by 10
- Use knowledge of the composition of 100 to multiply and divide by 100 in different ways
- Scale division facts derived from multiplication facts by 100
- Understand that multiplying by 10 makes a number ten times the size
- Use place value to explain placing a zero after the final digit when we multiply whole numbers by 10
- Explain the relationship between multiplying a number by 100 and multiples of 100
- Explain how making a factor 100 times the size affects the product
- Explain the removal of placeholders when dividing whole numbers by 100
- Scale known multiplication facts by 100
- Explain how making the dividend 100 times the size affects the quotient
- Explain the relationship between multiplying a number by 10 and multiples of 10
- Explain how making the dividend 10 times the size affects the quotient