a)
= (45 + 55) + (127 + 303)
= 100 + 43= 530
b)
= 127 x (35 + 54 + 1)
= 127 x 90 = 11 430
a)
=(45 + 55) + (127 + 303)
=100 + 500
= 600
b)
= 127 x (35 + 54 + 1)
=127 x 100
= 12700
a,45 + 127 + 55 + 303
= (45 + 55) + (127 + 303)
= 100 + 430
= 530
b, 127 x 35 + 127 x 54 + 127
= 127 x (35 + 54 + 1)
= 127 x 90
= 11430
a) (127+303)+(45+55)
= 430+100
=530
b) 127x(35+54+1)
=127x100
=12700
1 là khi 127 đứng riêng tách thành 127x1
a) 45 +127+55+303
=(45+55)+(127+303)
=100+330
=430
b)127.35+127.54+127
=127.35+127.54+127.1
=127.(35+54+1)
=127.90
=11430