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MAR 1 o 1973
Generalizations in regard to zero and one
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action addition and subtraction addition basic facts additive situation algorism answer apples attention base-ten numeration system bers candy cent child combining common denominator complete quotient computation concept counting developed discussed dividend division basic facts divisive situations divisor elementary elementary arithmetic emphasize equal groups equal subgroups equation example Finding the number fish hooks fundamental group of objects groups of 11 improper fraction involved kittens larger group long division mathematical meaning measurement mental mental calculation methods minuend mixed numbers modern arithmetic program multiplication and division natural numbers number expressed number line number of equal number of objects original number partial quotient partitive division pints principles problem situations problem solving procedure proper fraction puppies quotitive ratio ratio test rectangle regrouping represented result reteaching riences rule section for Grade short cut solution subtraction basic facts taught teaching tion topic total number type of problem whole numbers zero