More addition & subtraction

Addition with regrouping

Name: ______________________________Date: ______________Score: ______ / 20

1.
Which addition means you must regroup ten ones as one ten?
1. A67 + 29
2. B43 + 56
3. C42 + 55
2.
Work out 84 + 62.
3.
Work out 64 + 72.
4.
Work out 233 + 50.
5.
Work out 154 + 65.
6.
Work out 473 + 166.
7.
A library has 519 fiction and 348 non-fiction books. How many books are there all together?
books
8.
Addition is commutative. Which has the same total as 26 + 71?
1. A71 − 26
2. B71 + 26
3. C26 − 71
9.
When you add 64 + 72 you must regroup the tens.
True False
10.
To add 8 + 5 + 2 easily, which pair should you add first to make a ten?
1. A8 + 5
2. B8 + 2
3. C5 + 2
11.
Add 3 + 7 + 2 + 9.
12.
Which word means you can add numbers in any order and get the same total?
1. Acommutative
2. Bestimate
3. Cdenominator
13.
Order these additions by their total, smallest first.
Write the order (smallest total to largest total) in the boxes:
- ?191 + 56
- ?178 + 60
- ?154 + 65
14.
Work out 71 + 80.
15.
Work out 13 + 97.
16.
Work out 665 + 140.
17.
Work out 751 + 33.
18.
Work out 80 + 526.
19.
Work out 72 + 11.
20.
Work out 98 + 39.

Answer key

More addition & subtraction — Addition with regrouping