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047_G3U4_G4U9_˙—» ¿º 2011.3.22 8:27 PM ˘ ` 38 PDF_In 2540DPI 150LPI T
Activity 3 The Smallest Difference
1 . Play the game using number cards.
Let’s Play
1. Shuffle the number cards and place them face What you need:
down on the table.
12345
2. Without looking, pick 4 cards. Then make a 67890
4-digit number so that the difference between Number Cards (A2)
the number and 5,000 is the smallest.
3. The person who makes the smallest difference wins.
4,752 5,000 5,124
I picked 2, 4, 5, and 7 I picked 1, 2, 4, and
and made 4,752. 5 and made 5,124.
So, the difference So, the difference
between 5,000 and between 5,000 and
4,752 is 248. 5,124 is 124.
4 24
7 51
52
The difference between Thomas’
number and 5,000 is 124. The
difference between Kate’s number
and 5,000 is 248. Thomas wins!
38
Activity 3 The Smallest Difference
1 . Play the game using number cards.
Let’s Play
1. Shuffle the number cards and place them face What you need:
down on the table.
12345
2. Without looking, pick 4 cards. Then make a 67890
4-digit number so that the difference between Number Cards (A2)
the number and 5,000 is the smallest.
3. The person who makes the smallest difference wins.
4,752 5,000 5,124
I picked 2, 4, 5, and 7 I picked 1, 2, 4, and
and made 4,752. 5 and made 5,124.
So, the difference So, the difference
between 5,000 and between 5,000 and
4,752 is 248. 5,124 is 124.
4 24
7 51
52
The difference between Thomas’
number and 5,000 is 124. The
difference between Kate’s number
and 5,000 is 248. Thomas wins!
38