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### Grade 3 - Mathematics5.3 Kinds of Subtraction

 There are four kinds of subtraction: Compare Additive Subset Take away Compare: Comparing two quantities. Example: Ages of two people Additive: Comparing two quantities and addition performed to equate smaller quantity to the larger quantity. Example: Number of days to be added to a week to reach 30 days. Subset: A part of the whole quantity. Example: Number of red balls from a basket containing many balls. Take away: Finding the difference between the whole and the subset. Example: Subtracting the number of Sundays from a month. Directions: Write the kind of subtraction in each case. Also write at least five examples of your own for each kind.
 Q 1: Kelsey and Ellen dropped 4 pieces of food into the crayfish bowl. Sandy ate 2. How many are left? Name the type of subtraction.CompareAdditiveTake awaySubset Q 2: We need to read 60 hours to earn a pizza party. So far we have read 23 hours. How many hours do we still need to read? Name the type of subtraction.AdditiveTake awayCompareSubset Q 3: We ordered 12 crayfish and 4 died. How many are left? Name the type of subtraction.Take awayAdditiveCompareSubset Q 4: Mrs. Matzik baked 30 cookies. Twenty were shaped like pumpkins, how many were not?Name the type of subtraction.CompareTake awayAdditiveSubset Question 5: This question is available to subscribers only! Question 6: This question is available to subscribers only!