Q: How do you make 28 using 1 2 3 4?

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It can be: (5*6)-21 = 28

((7-2) * 4) + 8 = (5 * 4) + 8 = 20 + 8 = 28

Convert the mixed number to an improper fraction, make the two fractions equivalent fractions with the same denominator, and compare the numerators: 1 1/2 = (1×2+1)/2 = 3/2 3/2 = (3×5)/(2×5) = 15/10 15 < 28 → 15/10 < 28/10 → 1½ < 28/10 → No; 1½ is not greater than 28/10

28=1*2*2*7 28=2*14,-2*-14 28=4*7, -4*-7 28=1*24, -1*-24

you can make them all using 1, 1-1=0 1=1 1+1=2 1+1+1=3 etc.

Related questions

2 dimes, 8 pennies, 1 dime 18 pennies

((7-2) * 4) + 8 = (5 * 4) + 8 = 20 + 8 = 28

2 x 2 x 7 1 x 1 x 28 1 x 4 x 7

5 x 3! - (4 - 2) = 30 - 2 = 28 5 x 3! - (4 ÷ 2) = 30 - 2 = 28 (2 x 3 x 5) - √4 = 30 - 2 = 28

1 and 28. 2 and 14. 4 and 7.

(2(4 + 1) - 3)

3 * (2 - 1)

1, 2, 4, 7, 14 and 28 are its factors, so it has six factors.

34+1-2

(4! - 3)*1*2

8/4 = 2/1 = 28/4 = 2/1 = 28/4 = 2/1 = 28/4 = 2/1 = 2

21+3 or using all the numbers: 21 + (3*(2-1))