题文
①6.5×8+3.5×8-44 | ②907+907×9 | ③(999+111)÷[56×(-)] | ④56×99 | ⑤168.1÷(4.3×2-0.4) | ⑥[2-(11.9-8.4×1)]÷1.3. |
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题型:解答题 难度:中档
答案
①6.5×8+3.5×8-44 =(6.5+3.5)×8-44 =10×8-44 =80-44 =36; ②907+907×9 =907×(1+9) =907×10 =9070; ③(999+111)÷[56×(-)] =1110÷[56×] =1110÷3 =370; ④56×99 =56×(100-1) =56×100-56×1 =5600-56 =5544; ⑤168.1÷(4.3×2-0.4) =168.1÷(8.6-0.4) =168.1÷8.2 =20.5; ⑥[2-(11.9-8.4×1)]÷1.3 =[2-(11.9-×)]÷1.3 =[2-(11.9-11.2)]÷1.3 =[2-0.7]÷1.3 =1.3÷1.3 =1. |
据专家权威分析,试题“①6.5×8+3.5×8-44②907+907×9③(999+111)÷[56×(37-38)]④56×99⑤168..”主要考查你对 整数,小数,分数,百分数和比例的混合计算 等考点的理解。关于这些考点的“档案”如下:
整数,小数,分数,百分数和比例的混合计算
考点名称:整数,小数,分数,百分数和比例的混合计算
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