year 4 add two 4-digit numbers 3 powerpoint presentation · year 4 –autumn block 2 –addition...
TRANSCRIPT
LIFE/work balance
We have started a #LIFEworkbalance campaign and we need your help to complete our LIFE/work balance survey.
We hope to publish the results soon, so please give 15 minutes of your time to help us get a true picture of school life.
Want to be a part of this campaign? Take the survey on our website and share it with your colleagues!
© Classroom Secrets Limited 2019
Year 4 – Autumn Block 2 – Addition and Subtraction – Add Two 4-digit Numbers 3
About This Resource:
This PowerPoint 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 4: (4C2) Add and subtract numbers with up to 4 digits using the formal written methods of
columnar addition and subtraction where appropriate
Mathematics Year 4: (4C3) Estimate and use inverse operations to check answers to a calculation
Mathematics Year 4: (4C4) Solve addition and subtraction two-step problems in contexts, deciding which
operations and methods to use and why
More Year 4 Addition and Subtraction resources.
Did you like this resource? Don’t forget to review it on our website.
© Classroom Secrets Limited 2018
Year 4 – Autumn Block 2 – Addition and Subtraction
Step 4: Add Two 4-Digit
Numbers 3
© Classroom Secrets Limited 2018
Introduction
What number is represented below?
Add 1 to the number.
What happens to the place value counters?
© Classroom Secrets Limited 2018
Thousands Hundreds Tens Ones
Introduction
What number is represented below? 2,759
Add 1 to the number. 2,759 + 1 = 2,760
What happens to the place value counters? The ones must be
exchanged for a ten, so there are no ones left in the column.
© Classroom Secrets Limited 2018
Thousands Hundreds Tens Ones
Varied Fluency 1
Complete the calculation below.
What is the value of the circled digit?
© Classroom Secrets Limited 2018
Th H T O
+
111
Varied Fluency 1
Complete the calculation below.
What is the value of the circled digit?
The circled digit is 100.
© Classroom Secrets Limited 2018
Th H T O
+
6 1 3 0
111
Varied Fluency 2
Complete the calculation.
© Classroom Secrets Limited 2018
5 1 5 9
+ 2 8 6 2
Varied Fluency 2
Complete the calculation.
© Classroom Secrets Limited 2018
5 1 5 9
+ 2 8 6 2
8 0 2 1
111
Varied Fluency 3
How many exchanges occur in the following calculation?
© Classroom Secrets Limited 2018
3 8 2 4
+ 1 6 9 7
Varied Fluency 3
How many exchanges occur in the following calculation?
3 exchanges
© Classroom Secrets Limited 2018
3 8 2 4
+ 1 6 9 7
5 5 2 1
111
Varied Fluency 4
True or false? The following calculations are correct.
© Classroom Secrets Limited 2018
A. 2,625 + 1,395 = 3,738 + 2,489
B. 4,823 + 1,798 = 3,765 + 2,856
Varied Fluency 4
True or false? The following calculations are correct.
© Classroom Secrets Limited 2018
A. 2,625 + 1,395 = 3,738 + 2,489
False (4,020 < 6,227)
B. 4,823 + 1,798 = 3,765 + 2,856
True (6,621 = 6,621)
Problem Solving 1
Use the digit cards to create addition calculations using two 4-digit
numbers with 3 exchanges.
Find two possibilities.
© Classroom Secrets Limited 2018
8 25 4
Problem Solving 1
Use the digit cards to create addition calculations using two 4-digit
numbers with 3 exchanges.
Find two possibilities.
Various answers, for example:
4,258 + 2,845 = 7,103; 2,485 + 2,548 = 5,033; 2,854 + 4,258 = 7,112
© Classroom Secrets Limited 2018
8 25 4
Reasoning 1
Find and explain the mistakes.
© Classroom Secrets Limited 2018
7 6 9 3
+ 1 5 2 8
9 2 1 1
4 3 8 1
+ 1 6 3 9
5 9 2 0
A B
111 11
Reasoning 1
Find and explain the mistakes.
© Classroom Secrets Limited 2018
7 6 9 3
+ 1 5 2 8
9 2 1 1
4 3 8 1
+ 1 6 3 9
5 9 2 0
A B
111
The exchanged 10 has
not been added to the
total. The correct answer
is 9,221.
11
The exchanged 100 has
not been added to the
total. This means that the
thousands column is
incorrect too. The
correct answer is 6,020.
Problem Solving 2
Draw the missing counters.
© Classroom Secrets Limited 2018
Th H T O
+
7 4 3 7
Problem Solving 2
Draw the missing counters.
8 hundreds, 7 tens and 8 ones
© Classroom Secrets Limited 2018
Th H T O
+
7 4 3 7