(52 - 14)x 48——52 x 48 -14 x 48 |
52 + 14 + 48——52 + (14 + 48) |
52 x (14 + 48)——52 x 14 + 52 x 48 |
52 x 14 x 48——14 x (48 x 52) |
=80÷4
=20
|
=7+4
=11
|
=720÷36
=20
|
=880÷80
=11
|
> | < |
< | = |
=(175+25)+(68+232)
=200+300
=500
|
=25x4x13
=100x13
=1300
|
=120÷(3x4)
=120÷12
=10
|
=47x(200+1)
=47x200+47
=9400+47
=9447
|
=35x(57+43)
=35x100
=3500
|
=9x(373-73)
=9x300
=2700
|