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口算.60-52=27+36=73-66=750+370=5000-4100=78+14=61-23=40÷5=850-480=2700+1600=79-45=54÷9=4×8=730-580=5200-800=45+23=8×9=54+43=720+190=6700+900=

题目详情
口算.
60-52=27+36=73-66=750+370=5000-4100=
78+14=61-23=40÷5=850-480=2700+1600=
79-45=54÷9=4×8=730-580=5200-800=
45+23=8×9=54+43=720+190=6700+900=

60-52=27+36=73-66=750+370=5000-4100=
78+14=61-23=40÷5=850-480=2700+1600=
79-45=54÷9=4×8=730-580=5200-800=
45+23=8×9=54+43=720+190=6700+900=
60-52=27+36=73-66=750+370=5000-4100=60-52=27+36=73-66=750+370=5000-4100=78+14=61-23=40÷5=850-480=2700+1600=78+14=61-23=40÷5=850-480=2700+1600=79-45=54÷9=4×8=730-580=5200-800=79-45=54÷9=4×8=730-580=5200-800=45+23=8×9=54+43=720+190=6700+900=45+23=8×9=54+43=720+190=6700+900=
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答案和解析
60-52=827+36=6373-66=7750+370=11205000-4100=90078+14=9261-23=3840÷5=8850-480=3702700+1600=430079-45=3454÷9=64×8=32730-580=1505200-800=440045+23=688×9=7254+43=97720+190=9106700+900=7600