7 out of 40 equals x plus 70 out of 20? The wrong number is 40 / 7 = x + 20 / 30

7 out of 40 equals x plus 70 out of 20? The wrong number is 40 / 7 = x + 20 / 30

7/40=x+70/20
-x=70/20-7/40
x=-133/40
(it's typed word by word. Give me some points.)

A quarter is a fraction minus a fraction
Six out of twenty-five is a fraction minus a fraction

One in 25 = 4 / 100 = 5 / 100-1 / 100 = 1 / 20-1 / 100
One in 25 is one in 20 minus one in 100

Please move a match so that 244 equals 18

1 plus 1 times 1 equals 14. Which match makes the equation true

1+1×1=14
Put the second one in the upper left corner of the plus sign to make 14 × 1 = 14

1 plus 2 equals 2, 5 plus 5 equals 1, only one matchstick can be moved to make the equation hold, how to move

1 + 2 = 2, as above, change the following 2 to 3, then 1 + 2 = 3 is true
5 + 5 = 1, as above, change the plus sign to the minus sign, change the preceding 5 to 6, then 6-5 = 1 is true

Fill in different natural numbers when one sixth of the equation is equal to one part of () plus one part of (), so that the equation holds
Three. One more question
One twelfth is equal to one part of () plus one part of () plus one part of ()

1/6=1/9+1/18

Please put the numbers from 1 to 9 in brackets. 9 and 6 have been filled in to make the equation true
() multiply () subtract () = 96 divide () () add () = ()

2*5-7=96/48+1=3
(2) Multiply (5) minus (7) = 96 divide (4) (8) plus (1) = (3)
1*7-2=96/48+3=5
(1) Multiply (7) minus (2) = 96 divide (4) (8) plus (3) = (5)

Just use the number 8 to make up five numbers. Fill in the box below to make the equation hold. Mouth + mouth + mouth = 1000

888 + 88 + 8 + 8 + 8 the answer is 1000

Ten mouths ten mouths ten mouths ten mouths ten mouths ten mouths = 1000, just use the number 8 to form five numbers and fill in the box above to make the equation true

888＋88＋8＋8＋8＝1000

In the third grade mathematics, only use the number 8 to form five numbers, fill in the brackets, make the equation hold. () + () + () + () = 1000

888+88+8+8+8=1000