tính
19 . 25 + 19 . 45 + 36 . 19
73 . 61 + 73 . 38 + 73
54 . 12 + 54 . 13 + 36 . 61 – 36 . 11
9 . 11 . 53 + 33 . 46 . 3 +99
78 . 31 + 78 . 17 + 22 . 72
69 . 115 – 69 . 14 – 69
341 . 67 + 341 . 16 + 659 . 83
. là nhân nhaaaa
tính
19 . 25 + 19 . 45 + 36 . 19
73 . 61 + 73 . 38 + 73
54 . 12 + 54 . 13 + 36 . 61 – 36 . 11
9 . 11 . 53 + 33 . 46 . 3 +99
78 . 31 + 78 . 17 + 22 . 72
69 . 115 – 69 . 14 – 69
341 . 67 + 341 . 16 + 659 . 83
. là nhân nhaaaa
Đáp án:
19 . 25 + 19 . 45 + 36 . 19
=19 .(25+45+36)
= 19 . 106
=2014
73 . 61 + 73 . 38 + 73
= 73 . (61+38) + 73
= 73 . 99 + 73
= 7227 + 73
= 7300
54 . 12 + 54 . 13 + 36 . 61 – 36 . 11
= 54(12+13) + 36(61-11)
= 54 . 25 + 36 . 50
= 1350 + 1800
= 3150
9 . 11 . 53 + 33 . 46 . 3 +99
= 5247 + 4554 + 99
= 9900
78 . 31 + 78 . 17 + 22 . 72
= 78(31+17) + 22.72
= 78 . 48 + 1584
= 5328
69 . 115 – 69 . 14 – 69
= 69 (115-14 ) -69
= 69 . 101 – 69
=6969 -69
= 6900
341 . 67 + 341 . 16 + 659 . 83
= 341 (67+16) + 659 . 83
= 341 . 83 + 659 .83
= 83(341 + 659)
= 83 . 1000
= 83000
`19 . 25 + 19 . 45 + 36 . 19`
`=19(25+45+36)`
`=19*106`
`=2014`
`73 . 61 + 73 . 38 + 73`
`=73(61+38+1)`
`=73*100`
`=7300`
`54 . 12 + 54 . 13 + 36 . 61 – 36 . 11`
`=54(12+13)+36(61-11)`
`=54*25+36*50`
`=1350+1800`
=3150`
`9 . 11 . 53 + 33 . 46 . 3 +99`
`= 5247 + 4554 + 99`
`= 9900`
`78 . 31 + 78 . 17 + 22 . 72`
`=78(31+17)+1584`
`=78*48+1584`
`=5328`
`69 . 115 – 69 . 14 – 69`
`=69(115-14-1)`
`=69*100`
`=6900`
`341 . 67 + 341 . 16 + 659 . 83`
`= 341 (67+16) + 659 . 83`
`= 83.1000`
`= 83000`