Addition No Bridging Primary 5
Th
4
+
0
4
Estimate =
H
T
2
4
3
5
5
9
4500
U
3
4
7
1. Say the whole sum and put in a zero as a placeholder.
2. Estimate the answer by rounding.
3. 3 units add 4 units equals 7 units.
4. 4 tens add 5 tens equals 9 tens.
5. 2 hundreds add 3 hundreds equals 5 hundreds
6. 4 thousands add zero equals 4 thousands.
7. Draw a line under your answer and compare with your estimate.