1.Dolor had 41 2 boxes of books. She unpacked 21 2 of the boxes. How many more does she need to unpack?
a. What data are needed?
b. What operation is needed?
c. Write the mathematical sentence. d. Solve the problem.
e. The answer is __________.
a. What data are needed?
b. What operation is needed?
c. Write the mathematical sentence. d. Solve the problem.
e. The answer is __________.
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1) A.412 boxes,212 unpacked boxes
B.Minus
C.Four hundred twelve boxes,Two hundred twelve unpacked boxes
D. 412
-212
=.200
E. the answer is 200 boxes needed to unpacked