2012 年暑假四则混合运算练习(四年级下)
(能简算的要简算,并写出简算过程)
姓名学号班级
90÷9+1 90÷(9+1)770 -(530 -
230 )
770 -(530 +
230 )
540 ÷6÷15 540 ÷(6×15 )
30 ×8+12 30 ×(8+12)18 +90 ÷18 (18 +90)÷18 (60 +40 )+1 (36 -20 )÷ 2
28 ×(10 ÷5)80 ÷(4×5)70-
(50 -15)
(210 ÷70 )× 3 20 -20 ÷2 30×14 -4 60 ÷4×5 7+18-8 560 ÷70 ÷ 2
80 -(40 -19)50 +50 ×3 100 ÷20 +5
29+61 )÷15 61 -45 +5 90-47 -13
20 ×(36 -6)254 -120 ÷ 60 199 -69 +31 55-26 )×7 615 ÷(24 +17 )22 ×(71 -68 )203 -(43 -29)56-7 ×8 56 ÷7 ×8
32+3 × 20 32+3-20 17 × 3+20
17+3 × 20 2 ×36 +20 78-12 ×4
190 -30 ×5 27 ×3 ÷9 57-43 +36
90 +5×60 (30 +10 )×11
280
÷(5×14)
120 ÷(60 ÷15 ) 24 ×( 86-56 ) (170 +40 )÷ 30
88 ÷( 72-50 ) 90 -3×13
450
-(50 +150 )
6×( 31 -15 ) (95 -20 )÷ 25 90 - 40×2
(90-40 )×2 350 ÷50 + 20 350
÷(50 +20) 72÷12 ×3 72 ÷(12 ×3) 40 × (38 +12)
28+56 ÷28 (90-12 )÷26 810
÷(5×18) 160 -(95 -15 ) (70 +60 )×4
774
÷(27 +16)
45-26 )×33 98 +5×63 230 - 735 ÷35
32+28 )÷(32 —28 ) l0 +120÷ 10 )×8 80 +(146 -46×2)
205 -98 + 46 244 -6×28
(79 +57 )÷ 34 480 ÷32 - 15
540 ÷9 ÷5 300 -225 ÷5 +145
13 × 14 ×125 ×2
115 ×23 -23 ×15
-4.9
124 ×5 +169 ÷13
40 -(15.3 -4.8 )
181 -(109 +43 )
54 ×( 71-33 )
351- ( 164-88 )
179 +54 +321
15.25 -3.1 +0.75 56÷8 十 32 475 一 165 ÷3 125 ÷5 十 35 ×6
44 ×25 72 ×125
64 ×99 +64
4900 ÷25 ÷4
(100 +4 )
×25 17 ×43 -43 ×7
848-800 ÷16 ×12 43 ×99 72
÷[960 ÷( 245-165 )] 152 × 8+8 ×148
29+3.7+0.71+6.3
415 -176 - 24
428 ×78 +572 ×78 125 ×89 ×8
19 ×96 -962 ÷74
(520 + 480) ÷50 ×4 (324 -285) ×12 ÷26 86.7 -( 14.3 -3.8 )
37 +22 +63 +45
530 - 475 -25
8×(125 ×ll )
72.8-8.6+5.84 40-(3.5-2.75+0.86)
43 × 102