Remember: One total on the frame, one number at a time. Say the total so far, then add the next on top.
Read and answer
Read the story, then answer.
The coin tinsAfter the fair, Mia and Ben had to add up the coins from three tins. The first tin had 26 coins, the second had 38 and the third had 19. Ben wrote the numbers in a column, one under the other. Mia set 26 on the frame, because the frame keeps the total. She added 38 on top, and six ones and eight ones made a carry. The frame showed 64, the total so far. Then she added 19 on top, and four ones and nine ones made another carry. Eighty-three coins!
1
How many coins are in the three tins altogether?
2
What was the total so far after the first two tins?
3
What does the frame keep while you add a column?
the next numberthe total so farthe first number only
4
Adding a column means adding one number at a time.
TrueFalse
On the frame
Keep the total going on the frame.
5
The frame holds a total so far. What number does it show?
466410
6
24 + 31 + 12 =
7
The frame shows 27 + 16 so far. Add 38 more. Total:
8
If you add the same numbers in a different order, the total changes.
TrueFalse
9
Join each number to its friendly partner that makes ten.
16
28
37
49
A3
B1
C2
D4
Fix it and stretch
10
Mia added 26 + 38 + 19 and got 73. What went wrong?
She forgot the carried ten when she added 19She forgot the 38She added the 26 twice
11
Four numbers: 19 + 24 + 36 + 21 =
12
Number the steps for a column.
Add the last number and read the total
Set the first number on the frame
Read the total so far
Add the next number on top
13
Draw the beads for 83 on the frame.
14
Write three small prices and add them. Say the total so far each time.
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