Adding two 3-digit numbers (regrouping in one column)
Adding two 3-digit numbers (regrouping in one column)
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Lesson details
Key learning points
- In this lesson, we will build on our knowledge of partitioning and estimating and introduce column addition.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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5 Questions
Q1.
What is 554 rounded to the nearest 10?
50
500
560
Q2.
Does this look like a good estimate? 720 - 30 = 500
yes
Q3.
Does this look like a good estimate? 575 - 159 = 415
No
Q4.
What is an estimated answer here? 604 - 350 =
300
550
600
Q5.
What is this number rounded to the nearest 10? 996
2000
900
990
5 Questions
Q1.
89 + 5 =
104
84
90
Q2.
Which of these calculations requires regrouping?
200 + 700 =
230 + 620 =
800 + 100 =
Q3.
105 + 106 =
1011
110
201
Q4.
234 + 372 =
506
6106
616
Q5.
520 + 634 =
10054
1054
154