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Brain Storm (3) - Math

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发表于 2013-3-29 09:02:20 | 显示全部楼层 |阅读模式
This is for 2nd grade students.

1), Allison likes to skip stones at the local pond. She collected 15 rocks and separated them into 5 piles. Each pile has a different number of rocks. How many rocks are there in each pile?

2), There are 4 balls in a box. They are colored red, yellow, green and blue. The red ball is heavier than the yellow one, but lighter than the blue one. The green ball is heavier than the yellow one, but lighter than the red one. What color is the 3rd heaviest ball in the box?

3), Natalie and Grace had the same number of pens. Natalie gave Grace 6 pens. How many more pens does Grace have than Natalie does?

4), Find the sequence and fill in the blanks
          a) 0, 4, __, 12, __, 20, __
          b) 64, 55, 46, 37, __, __, 10
          c) 12345, 23451, ______, 45123

5), Find fast ways to do these additions
          a) 27 + 26 + 23 =
          b) 28 + 63 + 72 + 69 + 37 =
          c) 12 + 34 + 56 + 44 + 88 + 66 =


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匿名  发表于 2013-3-29 20:41:01
非常谢谢。
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发表于 2013-3-30 19:55:42 | 显示全部楼层
good!
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匿名  发表于 2013-3-31 10:40:09
Thanks a lot ! My son loves it. Unfortunately we are in emory area. Otherwise he will come to star education afterschool.
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