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032_G1U21_G1U22˙—» ¿º 2011.3.22 4:25 PM ˘ ` 47 PDF_In 2540DPI 150LPI T
Activity 2 Make Large Numbers
1 Add 2 numbers to make the greatest sum. What you need:
Number Cards (B1)
Let’s Play
1. Get into a group of 3. Place cards face down.
2. Pick 2 number cards.
3. You may trade in your cards from the pile.
4. Add 2 numbers.
5. The person with the greatest sum wins.
8`+`5`=`13
I think I won.
I picked 4 and 3.
4`+`3`=`7
No.
9`+`6`=`15
I won!
21. What’s Left after Making 10? 47
Activity 2 Make Large Numbers
1 Add 2 numbers to make the greatest sum. What you need:
Number Cards (B1)
Let’s Play
1. Get into a group of 3. Place cards face down.
2. Pick 2 number cards.
3. You may trade in your cards from the pile.
4. Add 2 numbers.
5. The person with the greatest sum wins.
8`+`5`=`13
I think I won.
I picked 4 and 3.
4`+`3`=`7
No.
9`+`6`=`15
I won!
21. What’s Left after Making 10? 47
