Question

помогите пожалуйста дам 100 балов ​

Answer 1

№1

1) 5 • 472 • 2 = 5 • 2 • 472 = 10 • 472 = 4720

2) 4 • 316 • 25 = 4 • 25 • 316 = 100 • 316 = 31600

3) 357 • 20 • 5 = 20 • 5 • 357 = 100 • 357 = 35700

4) 8 • 108 • 125 = 8 • 125 • 108 = 1000 • 108 = 108000

5) 259 • 250 • 4 = 250 • 4 • 259 = 1000 • 259 = 259000

6) 5 • 7 • 9 • 20 = 5 • 20 • (7 • 9) = 100 • 63 = 6300

№2

1) 8 • 2 • b = 16b

2) 9x • 3 = 27x

3) 15 • 4a = 60a

4) 3x • 2y = 6xy

5) a • 4b • 8 = 32ab

6) x • 2 • 4y • z = 8xyz

№3

1) 8 • 32 + 12 • 32 = 32 • (12 + 8) = 32 • 20 = 640

2) 15 • 43 - 15 • 33 = 15 • (43 - 33) = 15 • 10 = 150

3) 9 • 12 + 9 • 11 + 9 • 7 = 9 • (12 + 11 + 7) = 9 • 30 = 270

4) 16 • 4 + 9 • 4 - 15 • 4 = 4 • (16 + 9 - 15) = 4 • 10 = 40