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# Copyright © Mathematics Mastery 2017
Parental Guidance
In this unit, pupils multiply and divide using mental methods and are first introduced to written short methods of multiplication and division. This week, using short division, pupils must divide 3- and 4-digit numbers by one digit, with no remainders.
Short division
What pupils will write: What pupils will draw: What pupils will say:
Unit 3: Multiplication and division (Week 3 of 3)
Parental Guidance
In this unit, pupils multiply and divide using mental methods and are first introduced to written short methods of multiplication and division. This week, using short division, pupils must divide 3- and 4-digit numbers by one digit, with no remainders.
Short division
What pupils will write: What pupils will draw: What pupils will say:
1
3
4
2
1
2
There is one group of three thousands counters.
There is one thousand counter left. I can’t group three into this, so I regroup it for 10 hundreds.
Thousands
Hundreds
Tens
Ones
1
1000
100
100
1
1
10
1000
1000
1000
100
100
100
100
100
100
100
100
100
100
1
1
4
0
3
4
2
1
2
There are four groups of 3 hundreds counters.
I can’t group one ten counter into any groups of three, so I regroup it for 10 ones.
Thousands
Hundreds
Tens
Ones
1
4
0
1000
100
100
1
1
10
1000
1000
100
100
100
100
100
100
100
100
100
100
1
1
1
1
1
1
1
1
1
1
1
1
4
0
4
3
4
2
1
2
There are four groups of three ones counters.
Thousands
Hundreds
Tens
Ones
1
4
0
1000
100
100
1
1
1000
1000
100
100
100
100
100
100
100
100
100
100
1
1
1
1
1
1
1
1
1
1
1
1
1