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Westglade Primary School

Westglade Primary School

Grow, discover & blossom

School Values

  • Resilience
  • Creativity
  • Kindness
  • Excellence
  • Respect
  • Honesty



Today we are going to learn how to add and subtract mass. Complete the starter activity and then watch the video lesson below. 

784 - 342 =

736 + 256 =

43 x 2 = 

43 x 3 =

621 - 384 =

111 + 111 =

111 - 111 =




Year 3 - Week 11 - Lesson 3 - Add and subtract mass

Watch the video below that explains how to add and subtract mass. If you need to watch it again please do so. Can you think of a time when you would need to add or subtract mass in real life ?

Complete the worksheet on adding and subtracting mass and then mark your answers

True or false?


Today we are learning how to measure capacity. Capacity is the maximum amount that something can contain. Follow the lesson and complete the worksheet.

Year 3 - Measure capacity

Watch this video explaining how to measure capacity

True or false?


Watch the video on how to add and subtract capacity. Then have a go at completing the worksheet.

Year 3 - Add and subtract capacity

Watch the video and then complete the worksheet below

Complete the worksheet below and then check your answers using the answer sheet below.