å°å¦å年级
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ä¾1ã5.76ï¼13.67ï¼4.24ï¼6.33
=ï¼5.76ï¼4.24ï¼ï¼(13.67ï¼6.33)
=10ï¼10
=20
ä¾2ã37.24ï¼23.79ï¼17.24
=37.24ï¼17.24ï¼23.79
=20ï¼23.79
=43.79
ä¾3ã 4Ã3.78Ã0.25
=4Ã0.25Ã3.78
=1Ã3.78
=3.78
ä¾4ã 125Ã246Ã0.8
=125Ã0.8Ã246
=100Ã246
=24600
ä¾5ã(2.5ï¼12.5)Ã40
=2.5Ã40ï¼12.5Ã40
=100ï¼500
=600
ä¾6ã3.68Ã4.79ï¼6.32Ã4.79
=(3.68ï¼6.32)Ã4.79
=10Ã4.79
=47.9
ä¾7. 26.86Ã25.66ï¼16.86Ã25.66
=(26.86ï¼16.86) Ã25.66
=10Ã25.66
=256.6
ä¾8ã 5.7Ã99ï¼5.7
= 5.7Ã(99ï¼1)
=5.7Ã100
=570
ä¾9ã34Ã9.9
=34Ã(10ï¼0.1)
=34Ã10ï¼34Ã0.1
=340ï¼3.4
=336.6
ä¾10ã 57Ã101
=57Ã(100ï¼1)
=57Ã100ï¼57Ã1
=5757
ä¾11ã7.8Ã1.1
=7.8Ã(1ï¼0.1)
=7.8Ã1ï¼7.8Ã0.1
=7.8ï¼0.78
=8.58
ä¾12ã25Ã32
=25Ã4Ã8
=100Ã8
=800
ä¾13ã125Ã0.72
=125Ã8Ã0.09
=1000Ã0.09
=90
ä¾14ã87Ã2/85
=(85ï¼2) Ã2/85
=85Ã2/85ï¼2Ã2/85
=2ï¼4/85
=2å4/85
ä¾15ã56.5ï¼3.7ï¼6.3
=56.5ï¼(3.7ï¼6.3)
=56.5ï¼10
=46.5
ä¾16ã32.6÷0.4÷2.5
=32.6÷(0.4Ã2.5)
=32.6÷1
=32.6
ä¾16ã86.7Ã0.356ï¼1.33Ã3.56
=8.67Ã3.56ï¼1.33Ã3.56
=(8.67ï¼1.33)Ã3.56
=10Ã3.56
=35.6
ä¾17ã15.6÷4ï¼5.6Ã1/4
=15.6Ã1/4ï¼5.6Ã1/4
=(15.6ï¼5.6)Ã1/4
=10Ã1/4
=2å1/2
ä¾18ã16/23Ã27ï¼16Ã19/23
=27/23Ã16ï¼16Ã19/23
=16Ãï¼27/23ï¼19/23ï¼
=16Ã2
=32