we need to divide the number of toy dinosaurs, 156, by the number of brothers, 4:
in order to estimate, we can use compatible numbers:
156 ÷ 4
↓
160 ÷ 4 = 40
the correct answer is a).
Another question on Mathematics
Mathematics, 21.06.2019 17:30
Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?
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