Year 5 Summer Block 1 Decimals Complements to

Year 5 – Summer Block 1 – Decimals – Complements to 1 About This Resource: This Power. Point has been designed to support your teaching of this small step. It includes a starter activity and an example of each question from the Varied Fluency and Reasoning and Problem Solving resources also provided in this pack. You can choose to work through all examples provided or a selection of them depending on the needs of your class. National Curriculum Objectives: Mathematics Year 5: (5 F 10) Solve problems involving number up to 3 dp. Mathematics Year 5: (5 M 9 a) Use all four operations to solve problems involving measure [for example, length, mass, volume, money] using decimal notation, including scaling. More Year 5 Decimals resources. Did you like this resource? Don’t forget to review it on our website. © Classroom Secrets Limited 2018

Year 5 – Summer Block 1 – Decimals Step 3: Complements to 1 © Classroom Secrets Limited 2018

Introduction You have rolled three die: Place each die in one column of the place value chart. Use this number in an addition sentence to make 1. 0. 245 + © Classroom Secrets Limited 2018 = 1

Introduction You have rolled three die: Place each die in one column of the place value chart. Use this number in an addition sentence to make 1. 0. 245 + © Classroom Secrets Limited 2018 0. 755 = 1

Varied Fluency 1 Look at the place value chart. Ones Tenths Hundredths Thousandths If we add 0. 009 which columns would change? What would the new digits be? © Classroom Secrets Limited 2018

Varied Fluency 1 Look at the place value chart. Ones Tenths Hundredths Thousandths If we add 0. 009 which columns would change? The thousandths and the hundredths columns would change. What would the new digits be? The new digits would be 5 in the thousandths (0. 005) and 3 in the hundredths (0. 03). © Classroom Secrets Limited 2018

Varied Fluency 2 Use the hundred square to create a subtraction and addition calculation with decimal numbers. © Classroom Secrets Limited 2018

Varied Fluency 2 Use the hundred square to create a subtraction and addition calculation with decimal numbers. 0. 76 + 0. 24 = 1 0. 24 + 0. 76 = 1 © Classroom Secrets Limited 2018 1 – 0. 76 = 0. 24 1 – 0. 24 = 0. 76

Varied Fluency 3 Use the bar model to represent and complete the following calculation: 0. 89 + © Classroom Secrets Limited 2018 = 1

Varied Fluency 3 Use the bar model to represent and complete the following calculation: 0. 11 0. 89 1 © Classroom Secrets Limited 2018 = 1 0. 11 0. 89 +

Varied Fluency 4 True or false? 0. 813 + 0. 297 = 1 + © Classroom Secrets Limited 2018

Varied Fluency 4 True or false? 0. 813 + 0. 297 = 1 + 0 8 1 3 0 2 9 7 1 1 1 False © Classroom Secrets Limited 2018

Varied Fluency 5 Fill in the blanks. 0. 262 + + © Classroom Secrets Limited 2018 0. 703 = 1

Varied Fluency 5 Fill in the blanks. 0. 262 0. 297 © Classroom Secrets Limited 2018 + 0. 738 + 0. 703 = 1

Reasoning 1 Look at the calculation below. 0 9 Jessica says, 7 + 0 0 The two digits will always be larger than 0. Is Jessica correct? Explain your answer. © Classroom Secrets Limited 2018 3=1

Reasoning 1 Look at the calculation below. 0 9 Jessica says, 7 + 0 0 The two digits will always be larger than 0. Is Jessica correct? Explain your answer. No, Jessica is not correct because. . . © Classroom Secrets Limited 2018 3=1

Reasoning 1 Look at the calculation below. 0 9 Jessica says, 7 + 0 0 3=1 The two digits will always be larger than 0. Is Jessica correct? Explain your answer. No, Jessica is not correct because she could use 0 and 9 to complete the calculation. © Classroom Secrets Limited 2018

Problem Solving 1 Use the counters to create a complement to 1. Some counters have been placed for you. Ones Tenths Hundredths Thousandths + Place counters into any column to indicate their value. Use all the counters given. © Classroom Secrets Limited 2018

Problem Solving 1 Use the counters to create a complement to 1. Some counters have been placed for you. Various answers, for example: Ones Tenths Hundredths Thousandths + Place counters into any column to indicate their value. Use all the counters given. © Classroom Secrets Limited 2018

Reasoning 2 Find the odd one out from these calculations: 0. 635 + 0. 365 0. 414 + 0. 586 0. 335 + 0. 665 0. 352 + 0. 684 Explain your answer. © Classroom Secrets Limited 2018

Reasoning 2 Find the odd one out from these calculations: 0. 635 + 0. 365 = 1 0. 414 + 0. 586 = 1 0. 335 + 0. 665 = 1 0. 352 + 0. 684 = 1. 036 Explain your answer. 0. 352 + 0. 684 is the odd one out because it is not a complement to 1, the others are. © Classroom Secrets Limited 2018