# Add numbers with up to 3 decimal places - Teaching Presentation - Year 6

Created by
HamiltonTrust

This presentation provides two days of teaching that cover the objective:

• Add numbers with up to three decimal places

It includes starter activities, whole class teaching, group activities, practice sheets and mastery questions. It can be used on a variety of interactive whiteboards.

Day 1 Teaching
Children use written addition to work out 4.72 + 3.45. They round each number to the nearest whole to check if the answer seems reasonable. Ensure that children understand that 0.7 + 0.4 = 1.1, not 0.11. Write 45.7 + 3.45 and show how we line up the decimal point to help add place values.

Day 2 Teaching
Use Dartboard rounding and choose kilograms. Discuss which pair might have a total near 20kg. Take suggestions and click to round to the nearest kg to confirm. Work through some additions, talking through adding 0.001s, writing in any ‘carried’ amounts as necessary.

This teaching is part of Hamilton’s Year 6 Decimals and Fractions block. Each Hamilton maths block contains a complete set of planning and resources to teach a term’s worth of objectives for one of the National Curriculum for England’s maths areas.

\$6.40
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### Info

Created: Mar 5, 2019

#### Presentation

pptx, 961 KB

presentation_dec-frac_6637

#### Lesson starter

docx, 16 KB

starters_dec-frac_6637

#### Lesson plan

docx, 129 KB

teach-activs_dec-frac_6637

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