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心算.0.6×0.7=0.9×0.05=0.12×0.6=1.2×0.3=0.03×0.6=0.16×0.5=0.7×0.8=23×0.3=0.15×0.4=

题目详情

心算.
0.6×0.7=
0.9×0.05=
0.12×0.6=
1.2×0.3=
0.03×0.6=
0.16×0.5=
0.7×0.8=
23×0.3=
0.15×0.4=
▼优质解答
答案和解析
0.6×0.7=0.42; 0.9×0.05=0.045; 0.12×0.6=0.072;
1.2×0.3=0.36; 0.03×0.6=0.018; 0.16×0.5=0.08;
0.7×0.8=0.56; 23×0.3=6.9; 0.15×0.4=0.06.