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 Mathematics Magazine for Grades 1-12  

10/2003

Anyone can become angry - that is easy, but to be angry with the right person, to the right degree, at the right time, for the right purpose, and in the right way - that is not easy.
 - Aristotle (B.C. 384-322)

Grade 2

Theory:

Place Values

Numbers, such as 84, have two digits.  Each digit is a different place value.  

The left digit is the ten's place.  It tells you that there are 8 tens in the number. 

The last or right digit is the one's place which is 4 in this example.  Therefore, there are 8 sets of 10, plus 4 ones in the number 84.

 8 4

 | |__one's place

 |_________ten's place

Solutions from the Previous Issue:

  1. Which numbers are more than 23 but less than 27?

Solution:

24, 25, 26

  1. If you are counting by ones, which number comes before 27?

Solution:

26

27 – 1 = 26  

  1. Which number is missing in this pattern?
    44, 51, 58, ___, 72

Solution:

65

44 + 7 = 51

51 + 7 = 58

58 + 7 = 65

65 + 7 = 72

  1. If you are counting by threes, which number comes after 24?

Solution:

24 + 3 = 27

Proposed Exercises:

   Calculate:

1.                    9 x 4 + 223 =

2.                    6 x 4 + 842 =

3.                    9 x 3  + 151 =

4.                    6 x 8 + 241 =