Question

Se dau numerele:
a=6×7-5×6+728÷8
b= 669÷3+3×4-4×4
c= 408÷24-16÷8
Compara: 5×a-2×b+c /___\ 7×a-3×b+2×c​

Answer 1

Răspuns:

92<94

Explicație pas cu pas:

a=6×7-5×6+728:8

a=42-30+91

a=12+91

a=103

b=669:3+3×4-4×4

b=223+12-16

b=235-16

b=219

c=408:24-16:8

c=17-2

c=15

Comparăm:

5×a-2×b+c=

5×103-2×219+15=

515-438+15=

77+15=

92

7×a-3×b+2×c=

7×103-3×219+2×15=

721-657+30=

64+30=

94

5×103-2×219+15<7×103-3×218+2×15

92<94