Addition of up to two 6-digit numbers with one regrouping
Group Activity 2
Add 56 478 to 3 050.
In groups:
- Represent 56 478 on an abacus.
- On the same abacus represent 3 050.
- Count the number of rings in each place value. What do you notice?
- Discuss and share the results with other groups.
Example 2
Note
- In the ten thousands column
5 + 7 = 12. - Regroup 12 ten thousands into 1 hundred thousand and 2 ten thousands.
- Write 2 and add 1 to 4 in the hundred thousands.
Exercise B
B1
In pairs, work out:
B2
Work out:
- 265 125 + 23 825 =
- 478 263 + 318 524 =
285 660 kg 250 020 kg = kg
B5
In an election, two candidates got 509 306 and 284 592 votes. How many people voted for the two candidates?
B6
Two factories processed 721 095 and 192 903 kilograms of sugar in a certain week. What was the total mass of sugar processed in that week?
B7
The distance recorded of two lorries showed 238 428 and 351 390 kilometres. What was the total distance travelled by both lorries?