3.6
0.8+4.5-1.9 5.26+7.74
1个回答
相关问题
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口算.2-0.7= 7.8+2= 5.74+0.26= 0.06+0.5= 4.6+5.4= 7.52-2.52= 1-
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1、3.26×4.5+5.2×3.26+9.7×6.74
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用简便方法运算:(1)3.26*4.5+5.2*3.26+9.7*6.74 (2)15.8*5.8+4.2*4.2+11
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口算.2-0.7=7.8+2=5.74+0.26=0.06+0.5=4.6+5.4=1-0.25=7.52-2.52=0
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1.24,70,208,( )2.0,1,3,8,21,( )3.7,9,40,74,1526,( )4.5,10,26
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3.26x4.5+5.2x3.26+9.7x6.74 简便方法计算
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2.5+7.5= 9.8-0.8= 1.4+7.6= 4.5+5.5= 19.8-9.8= 9.4+0.6=
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0.1+0.2+0.3+0.4+…+9.7+9.8= 5+5.1+5.2+5.3+…+9.7+9.8+9.9+10=
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69.8-(4.7+19.8)、4.74-8.98+15.98、2.5-1.98、7.2*9.9、7.2*10.1、88
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7.4*5.6+7.4+5.4-74*0.1(简算)