四年級數(shù)學(xué)下冊期末必考四則混合運算專項題

520x(80-720÷9)

=520x(80-80)

=520x0

=0

350-(350-350÷70)

=350-(350-5)

=350-345

=5

5580-(120x25-2991)

=5580-(3000-2991)

=5580-9

=5571

(324-285)x12÷26

=39x12÷26

=468÷26

=18

38+56÷7x4

=38+8x4

=38+32

=70

940x[128-(154-31)]

=940x[128-123]

=940x5

=4700

209+102÷(52-35)

=209+102÷17

=209+6

=215

450+390÷130-123

=450+3-123

=453-123

=330

(40+120÷40)x5

=(40+3)x5

=43x5

=215

186÷[(160+200)÷60]

=186÷[360÷60]

=186÷6

=31

39+187÷17-24

=39+11-24

=50-24

=26

358-160÷80x154

=358-2x154

=358-308

=50

(70+60x2)x9

=(70+120)x9

=190x9

=1710

12x[162÷(21-3)]

=12x[162÷18]

=12x9

=108

38x(25+120÷15)

=38x(25+8)

=38x33

=1254

125x8+589÷31

=1000+19

=1019

42x2-84÷7

=84-12

=72

350x2-2100÷3

=700-700

=0

(1065-35x27)÷24

=(1065-945)÷24

=120÷24

=5

127x[360÷(540÷36)]

=127x[360÷15]

=127x24

=3048

[325-(37+24)]÷12

=[325-61]÷12

=264÷12

=22

236-36÷(22-18)

=236-36÷4

=236-9

=227

360÷[(12+6)x5]

=360÷[18x5]

=360÷90

=4

72÷[960÷(245-165)]

=72÷[960÷80]

=72÷12

=6

[192-(54+38)]x67

=[192-92]x67

=100x67

=6700

(26÷13+75)x105

=(2+75)x105

=77x105

=8085

(234-195)x12÷26

=39x12÷26

=468÷26

=18

1000÷[(45-20)x4]

=1000÷[25x4]

=1000÷100

=10

26+13x20÷4

=26+260÷4

=26+65

=91

198÷[6x(54÷18)]

=198÷[6x3]

=198÷18

=11

12x(360-260÷20)

=12x(360-13)

=12x347

=4164

675-153÷9x20

=675-17x20

=675-340

=335

42x[169-(78+35)]

=42x[169-113]

=42x56

=2352

462-75x4÷25

=462-300÷25

=462-12

=450

76x[900÷(235-199)]

=76x[900-36]

=76x25

=1900

(954-24x26)÷22

=(954-624)÷22

=330÷22

=15

768÷4÷6

=192÷6

=32

900÷30+14x60

=30+840

=870

(903-182)÷7

=721÷7

=103

56+670÷5

=56+134

=190

32x(300-286)

=32x14

=448

925-25x8

=925-200

=725

20x45÷6

=900÷6

=150

(502+128)÷5

=630÷5

=126

700-16x34

=700-544

=156

72x(63-48)

=72x15

=1080

345÷5÷3

=69÷3

=23

618÷(3x2)

=618÷6

=103

50+98+50

=50+50+98

=100+98

=198

488+40+60

=488+(40+60)

=488+100

=588

0.25x56x4

=0.25x4x56

=1x56

=56

42x23-79

=966-79

=887

58÷2x16

=29x16

=464

45x16÷8

=720÷8

=90

25x(40+4)

=25x40+25x4

=1000+100

=1100

135x12.3-135x2.3

=135x(12.3-2.3)

=135x10

=1350

35.3x8+35.3x6-4x35.3

=35.3x(8+6-4)

=35.3x10

=353

199x25.6+25.6

=99x25.6+25.6x1

=25.6x(99+1)

=25.6x100

=2560

45x102

=45x(100+2)

=45x100+45x2

=4500+90

=4590

399x26

=(100-1)x26

=100x26-1x26

=2600-26

=2574

528-6.5-3.5

=528-(6.5+3.5)

=528-10

=518

528-89-128

=528-128-89

=400-89

=311

52.8-(40+12.8)

=52.8-12.8-150

=40-40

=0

3200÷25÷4

=3200÷(25x4)

=3200÷100

=32

256-58+44

=256+44-58

=300-58

=242

250÷8x4

=250x4÷8

=1000÷8

=125

99x0