Welcome to Year 3 Mathematics
Lessons & Assignments
WEEK 8 SUBTRACTION
MEANING OF DIFFERENCE
It means to subtract a smaller number from a bigger number.
EXAMPLE 1
Find the difference between 56 and 99.
4
3
EXAMPLE 2
Find the difference between 82 and 20.
6
2
EXAMPLE 3
Find the difference between 42 and 16.
3
1
6
2
EXAMPLE 4
Find the difference between 38 and 85.
1
7
7
4
EXAMPLE 5
6
1
1
7
9
EXAMPLE 6
0
1
1
8
3
3
3
Subtacting Tens and Hundreds
EXAMPLE 1
2098 -50 =
2048
8
4
0
2
EXAMPLE 2
5602 -80 =
5522
2
2
5
5
5
1
EXAMPLE 3
1073 - 400 =
673
3
7
6
EXAMPLE 4
8149 -900 =
7249
7
1
9
4
2
7
Subtraction without Regrouping
Subtract.
EXAMPLE 1
8
3
0
3
.png)
Step 1 : Subtract the ones.
Step 2 : Subtract the tens.
Step 3 : Subtract the hundreds.
Step 4 : Subtract the thousands.
Subtract from right to left.
EXAMPLE 2
9999 -849 =
9150
9
1
0
5
9
9
9
9
9
4
8
EXAMPLE 3
7248 -3112 =
4136
4
1
6
3
8
4
2
7
2
1
1
3
EXAMPLE 4
Subtract 1275 from7777.
2
0
5
6
EXAMPLE 5
Subtract 2124 from9876.
2
5
7