Fill in the brackets with nine numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 to make the formula true Fill in 1, 2, 3, 4, 5, 6, 7, 8, 9 numbers in brackets to make the formula true (each number cannot be repeated) 1、（ ）/（ ）*（ ）=（ )( ) （ ）+（ ）-（ ）= （ ） 2、（ )( )+( )-( )=( ) ( )*( )=( )( ) 3、（ ）（ ）（ ）（ ）*（ ）=（ ）（ ）（ ）（ ）

Fill in the brackets with nine numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 to make the formula true Fill in 1, 2, 3, 4, 5, 6, 7, 8, 9 numbers in brackets to make the formula true (each number cannot be repeated) 1、（ ）/（ ）*（ ）=（ )( ) （ ）+（ ）-（ ）= （ ） 2、（ )( )+( )-( )=( ) ( )*( )=( )( ) 3、（ ）（ ）（ ）（ ）*（ ）=（ ）（ ）（ ）（ ）

1. 4/2*8=16
5+7-9=3
2. 13+2-8=7
6*9=54

Use the plus sign, minus sign, multiply sign and bracket to form a formula for the following groups of numbers, so that the results are 21. ① 12,7, - 9, ② 1,15,1.2,7

(1) 7*[12+(-9)]=21
(2) (1.2-1)*7*15=21

Fill in the blanks with 1-9 so that the equation holds and the numbers cannot be repeated
□/□□+□/□□+□/□□=1

9 / 78 + 5 / 13 + 6 / 12 = 1 is not easy

Fill the nine different numbers 1 - 9 in the following nine circles to make the three formulas hold
() plus () equals ()
() minus () equals ()
() multiplied by () equals ()
I've come up with a way
4 5 9
Don't repeat
2 3 6

549
eight hundred and seventeen
two hundred and thirty-six