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Question
Try writing the break-up for these.
19 = ___ + 9
Options
10
12
11
9
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Solution
19 = 10 + 9
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We have to clean our school today. We make teams. Each team has 10 students.
Our team will clean the best! Here we go! Rub and Scrub!
The numbers of students in all the classes are:
| Class 1 | 53 |
| Class 2 | 42 |
| Class 3 | 35 |
| Class 4 | 54 |
| Class 5 | 26 |
How many teams will there be in each class? How many students will be left? Write here.
| How many teams? | Students left | |
| Class 1 | ||
| Class 2 | ||
| Class 3 | ||
| Class 4 | ||
| Class 5 |
- How many students are left in all?
- How many more teams can be made with all these students left?
Simple! I used these cards. I counted one rat and kept one 
card in my pocket.
for one rat.
for Two rats.
for How many rats?
I counted one rat and kept one card in my pocket.
for one rat.
When I had 10 cards, I changed it with this card 
in my pocket.
Which cards will he have in his pocket if he has counted up to
55
I counted one rat and kept one card in my pocket.
for one rat.
When I had 10 cards, I changed it with this card in my pocket.
Which cards will he have in his pocket if he has counted up to
72
I counted one rat and kept one card in my pocket.
for one rat.
When I had 10 cards, I changed it with this card in my pocket.
Which cards will he have in his pocket if he has counted up to
80
