Make expression.4.grusha from drain 180 g weigh, and pear with four plums 300 g how many pear weighs and how many plum weighs weigh? L.G. Peterson.

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There is a lot of such tasks and they are very easy. 1) 300-180=120 g - weigh 3 plums 2) 120:3=40 g - plum 3) 180 - 40 = 120 g weighs - pear weighs
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Answer add