Question

proszę o pomoc z góry dziękuje

Answer 1

Verified answer

2.

a) a = 670, b = 6700, c = 67000, d = 0.067

Odp: d, a, b, c

b) a = 430000, b = 0.0043, c = 0.043, d = 0.43

Odp: b, c, d, a

5.

a)

• 2 3/20 + 1/4 = 43/20 + 5/20 = 48/20 = 2 18/20 = 2 9/10

• 1 5/18 + 2 4/9 + 5/6 = 23/18 + 22/9 + 5/6 = 23/18 + 44/18 + 15/18 = 82/18 = 4 10/18 = 4 5/9

• 3 1/2 + 2 3/4 + 1 1/3 = 7/2 + 11/4 + 4/3 = 42/12 + 33/12 + 16/12 = 91/12 = 7 7/12

b)

• 2 1/20 - 3/4 = 21/20 - 15/20 = 6/20 = 3/10

• 1 7/18 - 2 2/9 = 25/18 + 20/9 = 25/18 + 40/18 = 65/18 = 3 11/18

• 2 1/7 - 5 2/3 = 8/7 - 17/3 = 24/21 - 119/21 = -95/21 = -4 11/21