1、 Add, subtract, multiply, divide or sign () 4()4()4()4=5 4()4()4()4=48 2、 () 6 () x () = 4 () () 2 3、 Find the rules and fill in the numbers 2.6.18.54()486.1458 4、 The sum of divisor, divisor, quotient and remainder is 100. Given that quotient is 12, remainder is 5, what is the divisor

1、 Add, subtract, multiply, divide or sign () 4()4()4()4=5 4()4()4()4=48 2、 () 6 () x () = 4 () () 2 3、 Find the rules and fill in the numbers 2.6.18.54()486.1458 4、 The sum of divisor, divisor, quotient and remainder is 100. Given that quotient is 12, remainder is 5, what is the divisor

[4(x)4(+)4](/)4=5
[4(+)4(+)4](*)4=48
(4)6(8)X(9)=4(2)(1)2
2.6.18.54(162)486.1458
Divisor x, divisor y
x+y+12+5=100
x=12y+5
x=77