Fill in the brackets of the following formula with appropriate numbers to make it true ()()() × 8 9 —————————— ()()()() 8 ()() ——————————— ()()()()
(1)(1)(2)
× 8 9
——————————
(1)(0)(0)(8)
8 (9)(6)
———————————
(9)(9)(6)(8)
Put the nine numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 into the following nine squares, each number can only be used once, so that the equation holds. □ × □ × (□ + □ + □) × (□ + □ -) = 2002
2002 = 2 × 7 × 11 × 13, 9 + 8-6 = 11, 1 + 3 + 4 + 5 = 13, so the answer is: 2 × 7 × (1 + 3 + 4 + 5) × (9 + 8-6) = 2002
Put the nine numbers 1, 2, 3, 4, 5, 6, 7, 8, 9 in the box to make the equation hold. How many different ways can you think of? □□□=12×□□□=13×□□□
According to the stem analysis, 327 = 12 × 654 = 13 × 981, or 273 = 12 × 546 = 13819
() * () = 56 () * () = 156 () * () = 156 put 123456789 in brackets. Each number can only be used once
1 56
4 39
2 78
() * () = () () () () put the number 123456789 in brackets to make the equation true?
The number cannot be repeated
The answer is:
1963×4=7852
1738×4=6952
() = () () X1 / 2 = 1 / 3x () () [fill the 9 numbers 123456789 in brackets to make the equation hold]
According to the ratio of the three numbers, we can determine the hundred digits: 246, i.e. 2 □ □ = 1 / 2 * 4 □ □ = 1 / 3 * 6 □, the rest: 1,3,5,7,8,9, the ten digits: can only be 1.35, i.e. 21 □ = 1 / 2 * 43 □ = 1 / 3 * 65, the rest of 789, of which 8 must be assigned to the second number [according to the coefficient 1 / 2], so as to get three complete numbers 219 = 1 / 2 * 438 = 1 / 3 * 657
123456789 these nine numbers are filled in () + () = () - () = () * () = ()
No repetition,
4+5=9
8-7=1
2*3=6
Put the nine numbers 123456789 in () () x () = ()
1963×4=7852
1738×4=6952
Put the nine numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 into the following nine squares, each number can only be used once, so that the equation holds. □ × □ × (□ + □ + □) × (□ + □ -) = 2002
2002 = 2 × 7 × 11 × 13, 9 + 8-6 = 11, 1 + 3 + 4 + 5 = 13, so the answer is: 2 × 7 × (1 + 3 + 4 + 5) × (9 + 8-6) = 2002
Put 123456789 in the box to confirm the equation
The box is as follows
()+()=()()-()=()()
Sorry, the number is wrong. It's 1 2 3 6 7 8 9
9+8=23-6=17
9+7=24-8=16