a. 3100 : (5 x 2 ) b. 135 : ( 5 x 3 )
c. 630 : ( 7 x 9 ) d. 240000 : 80 : 125
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3 câu trả lời 268
C1:
a. 3100 : (5 x 2 )
=3100:10
=310
b. 135 : ( 5 x 3 )
=135:15
=9
c. 630 : ( 7 x 9 )
=630:63
=10
d. 240000 : 80 : 125
=3000:125
=24
C2:
a. 3100 : (5 x 2 )
=3100:5:2
=620:2
=310
b. 135 : ( 5 x 3 )
=135:5:3
=27:3
=9
c. 630 : ( 7 x 9 )
=630:7:9
=90:9
=10
d. 240000 : 80 : 125
=240000:(80x125)
=240000:10000
=24
a. 3100:(5x2)=3100:10=310
b. 135:(5x3)=135:15=9
c. 630:(7x9)=630:63=10
d. 240000:80:125=3000:125=250
C1:
a. 3100 : (5 x 2 )
=3100:10
=310
b. 135 : ( 5 x 3 )
=135:15
=9
c. 630 : ( 7 x 9 )
=630:63
=10
d. 240000 : 80 : 125
=3000:125
=24
C2:
a. 3100 : (5 x 2 )
=3100:5:2
=620:2
=310
b. 135 : ( 5 x 3 )
=135:5:3
=27:3
=9
c. 630 : ( 7 x 9 )
=630:7:9
=90:9
=10
d. 240000 : 80 : 125
=240000:(80x125)
=240000:10000
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