Remember: Ones make ten, tens make nine, and the carry finishes the hundred.
Read and answer
Read the story, then answer.
The big prizeAt the fair, the big prize cost 100 stickers. Mia had 58 stickers in her book. She was so close, but how many more did she need? Mia set 58 on the frame as five tens and eight ones. First the ones row had to be full, and eight needed two more. Two more beads filled the ones row and it traded for a ten. Then the tens row had six tens, so it needed four more. Four more tens filled it, and it traded for a hundred! Ben had 71 stickers. His ones needed nine and his tens needed two.
1
How many more stickers does Mia need for the big prize?
2
Ben has 71 stickers. How many more does he need?
3
To make 100 from 58, the ones make ten and the tens make nine.
TrueFalse
4
After the ones trade up, Mia has 6 tens. How many more tens does she need?
5 tens9 tens4 tens
On the frame
Fill the ones row first, then the tens row.
5
How many more ones fill the ones row on this frame?
582
6
The frame shows 45. How many more make 100?
7
33 + = 100
8
19 + = 100
9
58 + 32 = 100.
TrueFalse
10
Join each number to what makes 100 with it.
158
271
325
490
A10
B42
C29
D75
Order and stretch
11
Number Mia's steps to 100.
Add tens until the tens row is full
Trade the full tens row for one hundred
Fill the ones row
Trade the full ones row for a ten
12
37 + 15 + = 100
13
Draw the beads that show one hundred.
14
Tell a grown-up how to find what makes 100 from 58.
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Answer key · Set A
How many more make a hundred?
142 58 needs 2 more ones to make a ten and 4 more tens to fill the tens row: 42 in all.
229 71 needs 9 more ones and 2 more tens: 29 in all.
3True 8 + 2 = 10, and 5 tens + 4 tens = 9 tens, then the carried ten makes the hundred.
44 tens 6 tens and 4 tens fill the tens row. The full tens row trades for one hundred.
52 8 and 2 make 10, so two more beads fill the ones row.
655 5 + 5 = 10 ones, and 4 + 5 = 9 tens, with the carried ten that makes 100.
767 3 + 7 = 10 ones, and 3 + 6 = 9 tens, with the carried ten that makes 100.
881 9 + 1 = 10 ones, and 1 + 8 = 9 tens, with the carried ten that makes 100.
9False 58 + 32 = 90. The tens need 4 more, not 3: 58 + 42 = 100.
101-B, 2-C, 3-D, 4-A Check each pair by adding: the two numbers make 100.
113, 4, 1, 2 Ones first, then the tens, then the hundred.
1248 37 + 15 = 52. Then 52 + 48 = 100.
14Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.