30. Problemas de operación mixta (nivel tres)

(2), 13+7×2-8=19

(3), 24× 5-6=114

(4), (37-9)÷7=4

(5), 26×4=104

(6 ), 63-7+8÷4=58

(7)16×2÷4+3=11

(8)91+9×100=991

(9)41×7÷2=143.5

(10)88-12+12×2=100

(11)78×50-1440÷12 = 3780

(12)3856÷16+85×16 = 1601

(13)4000÷(16+832÷13)= 50

( 14)(326+95×25)÷37= 73

(15)(7236÷18-228)×28=4872

(16)(4275-24×75 )÷25=99

(17)45+15×6= 135

(18)6×5÷2×4=60

(19 )30×3+8= 98

(20)400÷4+20= 120

(21)112÷3=14

( 22)(80÷280)÷4=2.1

7(100-10×5)= 120

360÷40= 9

40×20= 800

80-25= 55

745= 115

90×2= 180

16× 6= 96

300×6= 1800

540÷9= 60

30×20=600

400÷4= 100

350-80= 270

1670= 230

18-64÷8=10

42÷6+ 20= 27

40-5×7= 5