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Friday, June 14, 2013

Maths

Iritana planted 5 rows with 14 lettuce in each row. How many lettuce did she plant altogether?

 Strategy:Doubling & Halving.
Number sentence:5x14=
           
1. First I double 5 = 10. 
2.Next I half 14 = 7.

  Therfore the number sentence now is 10x7.

3. Last of all we multiply10 with7 = 70.

  Which is the same as 5x14.

( 1.5 x 10=50
2.5 x 4`= 20
3.50+20=70)

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