Question

用3、4、4、7四个数算出“24”（每个数只能用1次)？

Answer 1

（3+7-4）×4=24
3×（7+4÷4）=24
祝你好运！
aqui te amo。

Answer 2

(7一4+3)ⅹ4=24，(3+7一4)ⅹ4=24。

Answer 3

4×(7-4+3)
=4×6
=24
望采纳

Answer 4

3 × (4 ÷ 4+ 7)=24
(3 - 4 + 7) × 4 =24
(3 + 7-4) × 4 =24
(3 - (4 - 7)) × 4=24
( 7 - 4+3) × 4=24
3 × (7 + 4 ÷ 4) =24
3 × (7 + (4 ÷ 4)) =24
4 × ((3 - 4) + 7) =24
4 × (3 - (4 - 7)) =24
4 × (3 + 7 - 4)=24
4 × ((3 + 7) - 4)=24
4 × (3 + (7 - 4))=24
(4 ÷ 4 + 7) × 3 =24
((4 ÷ 4) + 7) × 3 =24
4 × (7 + 3 - 4) =24
4 × ((7 + 3) - 4) =24
4 × (7 + (3 - 4)) =24
4 × (7 - 4 + 3) =24
4 × ((7 - 4) + 3) =24
4 × (7 - (4 - 3)) =24
(7 + 3 - 4) × 4 =24
((7 + 3) - 4) × 4 =24
(7 + (3 - 4)) × 4 =24
(7 - 4 + 3) × 4 =24
((7 - 4) + 3) × 4 =24
(7 - (4 - 3)) × 4 =24
(7 + 4 ÷ 4) × 3 =24
(7 + (4 ÷ 4)) × 3=24

Answer 5

3x（4÷4+7）
=3x8
=24