Today I was learning to do our place values.We had to do place values so we can learn our plus's faster.A tidy number is a number that ends with a 0 like 10,20,30 or 40.For example 15 + 12,first find the close's tidy number which is 20,from the 12 add 5 over to the 15.The 15 would make 20 which would leave the 12 into a 7 So 20+7=27.
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