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Mathematical calculation problems of sixth grade in primary school
4 1) 1/5( 1- 1/3× 1/2)= 1/6

42) 9/ 10×[7/8÷(4/5+ 1/4)]=3/4

43) 408×25÷50=204

44) 1.92÷0.8× 1.25=3

45) 13/4×8/7÷26/5=5/7

46) (23/5÷7/5-3/2)7/2=25/4

47) 5/2×[3/50×( 1/2- 1/3)]= 10

48) 7/8×56+44×7/8=700/8

49) 4678+3420÷36=4773

50) 4.5×3.7-5.74-4.26=6.65

5 1) 8/49×[3/4-(3/ 16+ 1/8)]= 1/ 14

52) 15×5/4+85÷4/5= 125

53) 1587+ 1 140÷76= 1602

54) 3.5×(2/5+4/5)÷ 14/9=27/ 10

55) 5790+3248÷ 16×4=6602

56) 3.6+3.6÷0. 18-9.5= 14.9

57) 10/3÷4/9+ 1/6×3/4= 183/24

58) ( 1/4+ 1/8- 1/ 12)×24=7

59) (7/8+ 1/5)÷43/ 16+0.3=0.7

60) 8/9×[3/4-(7/ 16- 1/4)]= 1/2

6 1)5.6-2X = 3.4x = 1. 1

62) 2X+3×7=53 X= 16

63) 2003-450÷ 18×2 1= 1478

64) (2.8-2.5×0.8)÷ 1.6= 1/2

65) 30 15+36÷ 12× 160=3495

66) 90.8+5.4÷27-80= 1 1

67) 45×(2/3+4/5)÷ 1 1/ 10=60

68) (9.6×5/6-7.2)÷9/4= 16/45

69) (9.3×5/6-7.3)9/4=63/40

70) 6×8-3X=8.25 X= 13.25

7 1)X- 1/5X- 1.8 = 1 1 X = 16

72) X/2.5=40% X=4/25

73) 4X- 13=3 1 X=9/2

74) 4.5+8X=55/2 X=4

75) 1/4X- 12.5% X = 10 X = 1250

76) 3/5(3.5-X)=7/5 X=7/6

Very hard! There are too many topics!