五下数学综合作业(12)
一、 仔细算一算。
2.2×3 = | 31×0.3 = | 0.2×1.1= | 1.2×6 = | 2.4×0.5= |
2.1÷0.3= | 0.64÷8= | 0.75÷0.25= | 300÷50 = | 276÷100= |
0.52= | 10-0.06= | 0.24+6.6= | 9.1-7.3 = | 0.39÷13= |
1000÷8 = | 0.15×0.6= | 1-0.01= | 12.5×80= | 1.25×8 = |
48÷0.6 = | 6.8–0.08= | 160×5= | 1.44÷9= | 0.06×100= |
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7.5-2.5= | += |
| 0.5+ | 7÷40= |
2.4 | 1.2÷2.4= | 1.4×0.7= | 3.28×0.1= | 4.5×2= |
| += | += | 0.95- | += |
1.6÷40= | 5-1.7= | 1.02×5= | 0.07÷0.01= | 4.08÷8= |
4.7+2.3= | 2.5×40= | 4.16÷4= | 103= | 3.4×0.3= |
0.15×0.6= | 5.1÷0.3= | 60×0.6= | 6-2.5= | 8.95÷0.895= |
0÷4.61= | 0.5×0.4= | 1.5×0.4= | 0.32×5= | 1.8÷0.3= |
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8.4+1.6÷4= | 0.6÷3-0.2= | 0.1÷0.1×0.2= | 1.25×8×4= | 4.2÷0.7÷6= |
0.3×101-0.3= | 1.5÷1.5+1.5= | 350×0.2×0.5= | 7.5+3.8-2.5= | 3÷0.3×3÷0.3= |
二、在下面的○里填上“>” 、“<”或“=”。
15.6×2.1〇30 4×(2.5+a)〇4×2.5+4a 3.6×5.2 〇52×0.36
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三、A=2×3×a,B=2×a×7,已知A、B的最大公因数是6,那么a=( ),并求出A、B的最小公倍数(请把你的想法写出来)。
四、解方程。(12分)
(1)X-
=
(2)5X-
=
(3)4X-1.6X=36 (4) - X =
五、计算,要写出主要计算过程,能用简便方法的要用简便方法计算。(18分)
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(4) -(+) (5) 6-( + ) (6) 0.9×6.18+0.91×61.8
(7)
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五下综合作业(11)
一、 直接写得数
9-0.18= 0.9÷3= 5-1.7= 6.8+2.5= 4.7+2.3= 2.56-0.37= 8.4×0.9= 5.4÷0.6= 4.5×2= 4.2÷21= 3.9÷0.13= 12.8÷4= 6.9-2.5= 5.2÷13= 75×0.02=
4.5×0.6= 5.2÷13= 0.64÷8= 10-0.06= 0.24÷0.3=
5-= += += += -= += += -0.25=
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2.5×6.8×4= 2.5×0.7×0.8= 0.3×101-0.3= 7÷0.25÷4=
二、 求下面每组数的最大公因数和最小公倍数。
(1)24和30 (2)16和36
三、 在( )里填上合适的数。
(1)( )÷45= =12÷( )= =0.4
(2) 6÷( )=18÷( )=( )÷12=0.75
四、解方程。
2X-
=
X+
= 4X-1.6X=36
- X=
91 ÷ 3X =1.3
五、计算,要写出主要计算过程,能用简便方法的要用简便方法计算。(18分)
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8×1.27+9.2×12.7
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