计算(-5)×6×(-4/5)×4的值
(-5)×6 = -30
(-30)×(-4/5) = -24
(-24)×4 = -96
答案:-96
计算(-3)×(5/9)×(-1/6)×(-54/1)的值
(-3)×(5/9) = -5/3
(-5/3)×(-1/6) = 5/18
(5/18)×(-54/1) = -15
答案:-15
计算7.9×(-5.4)×(-23.8)的值
7.9×(-5.4) = -42.66
(-42.66)×(-23.8) = 1000.028
答案:1000.028
计算(2/3+5/6-1/4)×24的值
(2/3)×24 = 16
(5/6)×24 = 20
(1/4)×24 = 6
16 + 20 - 6 = 30
答案:30
计算(-3/4)×(-12)的值
(-3/4)×(-12) = -9
答案:-9
计算(-2)×(1/3)的值
(-2)×(1/3) = -2/3
答案:-2/3
计算(-98)×(-1/8)+(-98)×(-7)的值
(-98)×(-1/8) = -12.25
(-98)×(-7) = 686
-12.25 + 686 = 673.75
答案:673.75
计算25×(-11)×(-4)的值
25×(-11) = -275
(-275)×(-4) = 1100
答案:1100
计算6.868×(-5)+6.868×(6)+6.868×(14/13-7/8)的值
6.868×(-5) = -34.34
6.868×(6) = 41.208
6.868×(14/13) = 7.052
6.868×(-7/8) = -5.9256
-34.34 + 41.208 + 7.052 = 13.92
答案:13.92
计算(4/13+14/78-1/4)×(-56)的值
(4/13)×(-56) = -16
(14/78)×(-56) = -9.52
(1/4)×(-56) = 14
-16 - 9.52 + 14 = -11.52
答案:-11.52
这些题目涵盖了有理数乘法的各种情况,包括正数、负数、分数的乘法以及多个数的连乘。通过练习这些题目,可以加深对有理数乘法法则的理解和运用。