Paige knows that 5 + 7 = 12 without even thinking about it. Paige is using
a. decomposition strategy.
b. min strategy.
c. sum strategy.
d. fact retrieval.
Question 2Numbrinia can count big numbers. To add 42 and 21, she takes apart the numbers, adding four tens to two tens to get six tens, then adding two ones and one to get three ones, and then putting together the tens and ones to get 63, the total. This is the ____ counting strategy.
a. min
b. fact retrieval
c. decomposition
d. sum
Question 3Countia, a preschooler, adds the numbers 3 and 2 by stating the first number 3 and then counting up from 3 . Countia applies the ____ method of adding.
a. decomposition
b. sum
c. min
d. finger
Question 4The developmental trend about counting on one's fingers is that it
a. is used increasingly often through adulthood.
b. continues at a stable level through adulthood.
c. is used less often as mathematical skills are acquired.
d. continues to occur even in the post-mortem body.
Question 5Children master the cardinality counting principle by the age of
a. three months.
b. one year.
c. three years.
d. five years.
Question 6When counting, the total is the highest number reached. This is known as the ____ principle.
a. cardinality
b. one-on-one
c. abstraction
d. fixed order
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