直接写出计算结果． 2.6×0.3=43÷10%=0.32-0.23=+=4-=-=1.3×7+6.7×7=×5÷×5=
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解：
2.6×0.3=0.78??????????????? ? 43÷10%=430??????????????? 0.32-0.23=0.082??????????????????????? ?? += 4-=4??????????????????? -=???????????????????1.3×7+6.7×7=56???????????????????????? ?×5÷×5=25故