Estimate means to find a value that is close enough to the right answer, usually with some thought or calculation involved.

Long division is a method used for dividing large numbers by breaking the number down into smaller groups.

A remainder is an amount left after a division.

Dividing by a 2-digit divisor including using long division

Maths

In this unit pupils will learn to multiply a 3-digit by a 2-digit number They will use accurately short and long division and use a ratio chart to solve short and long division. In the future unit pupils will add, subtract, divide and multiply with integers, decimals, positive and negative values.

In the prior unit pupils will multiply a 3-digit number by a single-digit number using expanded and short multiplication. In this unit pupils will learn why the product stays the same when one factor is doubled and the other is halved and explain the effect on the product when scaling the factors by the same amount. 

Multiplying and dividing by 2-digit numbers

Use the multiplication facts in the table to derive 40 × 13 = {{ }}

Use the multiplication facts in the table to derive 15 x 13 = {{ }} 

If I know 17 × 5 = 85, I also know that 17 × 50 = {{ }}

Which of the following is a reasonable estimate for the following equation 918 ÷ 17 =

Calculate the equation using long division. 918 ÷ 17 = {{ }}

Match the multiplication equations to related division facts.

Match the division expressions to their quotients.

Complete the following equation using short division. 672 ÷ 12 = {{ }} 

What is the missing working from this algorithm?

Which of the following is a reasonable estimate for the following equation 432 ÷ 12 =

Calculate the equation using long division.    432 ÷ 12 = ___

This lesson will soon be taken down.

Dividing by a 2-digit divisor including using long division

Lesson outcome