Today we had a maths problem we had to solve. The maths problem was,
Marilyn needs to fertilise her front lawn. It measures 20m x 35m. Each bag of fertilise that she plans to use covers approximately 200m2. How many bags should she buy?
My strategy was, 20m x 35m = 700m. In each bag = 200m2. So if you buy 4 bags that is 800m2. But you need 700. If you half on of the bags in the 4 bags. You will have 100. 100 + 600 = 700m. She needs 3 1/2 bags of fertilise to cover her front lawn.
Today I learn't how to solve it with new strategies. Like place value partitioning.
Marilyn needs to fertilise her front lawn. It measures 20m x 35m. Each bag of fertilise that she plans to use covers approximately 200m2. How many bags should she buy?
My strategy was, 20m x 35m = 700m. In each bag = 200m2. So if you buy 4 bags that is 800m2. But you need 700. If you half on of the bags in the 4 bags. You will have 100. 100 + 600 = 700m. She needs 3 1/2 bags of fertilise to cover her front lawn.
Today I learn't how to solve it with new strategies. Like place value partitioning.
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