Remember: Partners make ten, and tens partners make a hundred, so sums get quicker.
Read and answer
Read the story, then answer.
Fill the TrayAt the fair there was a game called Fill the Tray. Every tray had ten spots, and filling them all won a prize. Mia's first tray already had two cubes in it. To see how many more would fill it, Mia counted the empty spots. There were eight empty spots, so two cubes and eight made a full tray! Two and eight are partners, because partners make ten. With five cubes in and five spots left, five is its own partner. Ben filled his tray and won a shiny pencil.
1
Mia's tray has 2 cubes in it. How many empty spots are there?
2
Five is its own partner.
TrueFalse
3
Which two numbers are partners that make ten?
6 and 37 and 34 and 5
4
Join each number to its partner that makes ten.
11
22
33
44
A8
B9
C7
D6
On the frame
Count the beads slid across to the right.
5
6 beads are slid across this row of ten. How many more fill it?
4610
6
4 + = 10
7
Ten ones are traded up for one ten. Which frame shows it after the trade? The top row is tens.
ABC
8
Tens partners: 60 + = 100
9
Join each number to its tens partner that makes 100.
120
210
340
A60
B80
C90
10
6 and 5 are partners that make ten.
TrueFalse
Use the partners
11
Spot the partners first. 4 + 8 + 6 =
12
Spot the tens partners first. 30 + 45 + 70 =
13
Draw the partner beads that fill the row of ten.
14
Write a pair of partners that make ten.
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Answer key · Set A
Partners that make ten
18 The tray has ten spots. Two cubes and eight empty spots fill the tray.
2True 5 + 5 = 10, so five is its own partner.
37 and 3 7 + 3 = 10. The other pairs make 9.
41-B, 2-A, 3-C, 4-D Partners balance each other and the total is always ten.
54 6 and 4 are partners: 6 + 4 = 10.
66 4 + 6 = 10, so six is the partner of four.
7B When the ones row is full, ten ones slide back and one bead slides up on the tens row.
840 6 tens and 4 tens make ten tens, which trade for a hundred.
91-B, 2-C, 3-A Tens partners make one hundred, like 20 + 80 = 100.
10False 6 + 5 = 11. The partner of 6 is 4.
1118 4 and 6 make 10, and 10 + 8 = 18.
12145 30 and 70 make 100, and 100 + 45 = 145.
14Your own words: a grown-up reads it.
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