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Week 4 (11th - 15th May 2020)

Mental Calculations

 

This week we are going to add, subtract, multiply and divide 2-digit numbers mentally. 

Before you start, follow this link for 7 practical tips for mental math!

 

https://www.mathmammoth.com/lessons/practical_tips_mental_math.php

 

Lesson 1 (11th May)

Mental addition

 

Let's work together through these two examples. Follow the links below to watch Let's Learn videos. 

 

https://moreland-primary-school.primarysite.media/media/mental-calculations-lets-learn-example-1

 

https://moreland-primary-school.primarysite.media/media/mental-calculations-lets-learn-example-2

Activity

 

Complete the examples below. You don't need to print off the sheet, just write out your answers.

Click on the pictures to enlarge them.

Practice Book
Lesson 2 (12th May)

Mental subtraction

 

Subtract a 2-digit number from another 2-digit number using the 'subtract tens followed by subtract ones' strategy.

Complete all the examples. You don't need to print off the sheet, just write out your answers.

Click on the pictures to enlarge them.

Practice Book
Lesson 3 (13th May)

Mental multiplication

 

Read example 1, pay attention to the formula in the blue box to help you.

Then, try to do the rest of the examples. 

Click on the pictures to enlarge them.

Practice Book
Lesson 4 (14th May)

Mental division

 

Complete all the examples. Remember that division is the inverse of multiplication. 

Click on the pictures to enlarge them.

Practice Book

Lesson 5 (15th May)

 

It's time for your Arithmetic Test ;) Good luck!

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