1樓:寶寶
135×4 9
-4 9
×10+65÷9 4
,=4 9
×(35-10)+65×4 9
,=4 9
×25+65×4 9
,=4 9
×(25+65),
=40;
2(1 6
+1 5
)×62616964757a686964616fe78988e69d83313333353331316×5,
=1 6
×6×5+1 5
×6×5,
=5+6,
=11;
3[(25%-1
12)×3
16]÷0.375,
=[(1 4
-112
)×316
]÷3 8
,=[1 6
×316
]÷3 8
,=132
×8 3
,=112
;43 4
÷910
-514
×715
,=3 4
×10 9
-514
×715
,=5 6
-1 6
,=2 3.
怎樣簡便就怎樣算?5/7+5/9×3/2+1/6。 4/9×5/7+2/7÷9/4。4/9×5/1
2樓:匿名使用者
5/7+5/9×
dao3/2+1/6
= 5/7+5/6+1/6
= 7/5+1
= 1+2/5+1
= 2又版2/5
4/9×權5/7+2/7÷9/4
= 4/9×5/7+2/7×4/9
= 4/9×(5/7+2/7)
= 4/9 × 1
= 4/9
4/9×5/11+5/9×7/11
= 4/9×5/11+ 7/9×5/11
= 5/11×(4/9+7/9)
= 5/11 × 11/9
= 5/9
1/9×9/10-1/9×3/10+4/9×1/10= 1/9×9/10-1/9×3/10+1/9×4/10= 1/9×(9/10-3/10+4/10)= 1/9×10/10
= 1/9
怎樣簡便就怎樣算(1)1 5 1 8 1
1 1.5 1.8 1.3 0.6,5 6 0.78,146 75 2 25 1.25 32,25 1.25 8 4,25 4 1.25 8 100 10,1000 3 4 5 1 4 7 3 710 21 20 7 3 710 920 710 1.15 4 56 4 7 5 8 3 4 56 4 ...
怎樣簡便就怎樣算。1 2 7 (
2 7 3 4 5 7 2 7 5 7 3 4 1 3 4 1又3 4 3 5 11 17 11 3 5 11 17 11 3 2 1 1.怎麼簡便怎麼計算。7 8 1 6 3 8 5 5 11 6 11 3 4 2 9 1 4 7 8 1 6 3 8 7 8 1 6 3 8 7 8 3 8 1 6...
下面各題怎樣算簡便就怎樣算3 6 1 25 0 32 0
3.6 1.25 0.32 0.4,4.5 0.8,5.3 455 12.5 4 8.1,455 50 8.1,455 50081,455 61481,4486781 8.25 4.8 4.8 1.75,8.25 1.75 4.8,10 4.8,48 加涅的學習分類 加涅把人類的學習分為八個層次 一...