Remember: Picture the beads. Add the tens first, then the ones. When the ones row fills up, trade ten ones for one ten.
Read and answer
Read the story, then answer.
Swapping stickersAt lunch Mia and Ben swap stickers. Ben has 31 stickers, and Mia gives him 20 more. Mia has no pencil, so she pictures her frame. Twenty is two tens, so only the tens row moves: three tens and two tens make five tens, and Ben has 51. Then Mia finds 6 more. One and six make seven, so Ben has 57. If the ones row fills up, ten ones trade for one ten.
1
Mia adds two tens to 31. Which row do the new beads go on?
The ones rowThe tens row
2
Picture the frame and add two tens. 53 + 20 =
3
Does 52 + 4 need a trade?
YesNo
4
Which sum makes the ones row fill up and trade?
21 + 673 + 544 + 8
5
Add the tens first, then the ones. 34 + 25 =
6
Which frame shows 38 + 5 after the trade?
ABC
Trades, order and fixes
7
The ones row fills up. 35 + 19 =
8
Join each sum to its answer.
122 + 30
218 + 6
340 + 17
426 + 7
A24
B33
C52
D57
9
Put the steps for adding in your head in order.
Picture the first number on the frame
Add the ones
If the ones row fills up, trade ten ones for one ten
Add the tens first
10
Ben says 54 + 8 = 52. Is he right?
YesNo
11
Does 29 + 5 need a trade?
YesNo
12
Mia pictures 48 + 27. What is the answer?
7565615
13
Draw the beads for 40 + 13 on the frame.
14
Make up an add sum where the ones row fills up. Write it.
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