СРОЧНО ПОМОГИТЕ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1) 18дм3 500см3 * 4= ... 2) 42м3 : 20=...
18дм3 500см3 *4= 18 500см3 *4=74 000см3 или 74дм3.
18дм3 500см=18 500см3
42м3 :20= 42 000дм3 :20=2 100дм3
42м3= 42 000дм3
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