1樓:樹皮降臨
(1)35+180÷20+10,
=35+9+10,
=44+10,
=54;
(2)(43+17)÷(36÷6),
=60÷6,
=10;
(3)(220+120)÷(20-16),=340÷4,
=85;
(4)210÷7×22×5,
=30×22×5,
=660×5,
=3300.
用遞等式計算. (1)35+180÷20+10 (2)(43+17)÷(36÷6) (3)(220+120)÷(20-16)
2樓:梓喵
(1)35+180÷20+10,
=35+9+10,
=44+10,
=54;
(2)(43+17)÷(36÷6),
=60÷6,
=10;
(3)(220+120)÷(20-16),=340÷4,
=85;
(4)210÷7×22×5,
=30×22×5,
=660×5,
=3300.
遞等式計算.35+180÷30-10(43+17)÷(36÷6)350-(350-350÷70)(220+120)÷(20-16
3樓:猴誘猩
(1)35+180÷30-10
=35+6-10
=41-10
=31;
(2)(43+17)÷(36÷6)
=60÷6
=10;
(3)350-(350-350÷70)
=350-(350-5)
=350-345
=5;(4)(220+120)÷(20-16)=340÷4
=85.
請用遞等式計算.72-3×8÷6 36.5×(28-5) (450+2.7)×(2.1-1.8) 86.7-(14.3+3.8 ) ...
4樓:手機使用者
(1)72-3×8÷
襲6=72-24÷6
=72-4
=68;
(2)36.5×(28-5)
=36.5×23
=839.5;
(3)(450+2.7)×(2.1-1.8)=452.7×0.3
=135.81;
(4)86.7-(14.3+3.8)
=86.7-18.1
=68.6;
(5)60×(
12.87+0.75)
=60×13.62
=817.2;
(6)95.6-(26.3-8.3)
=95.6-18
=77.6.
用遞等式計算: ( 1 3 + 2 5 )×15 200-180÷15×6(3.8-1.8÷2)×0.3 7 12
5樓:廖雲霞
①(1 3
+2 5
)×15
=1 3
×15+2 5
×15,
=5+6,
=11;
②200-180÷15×6
=200-12×6,
=200-72,
=128;
③(3.8-1.8÷2)×0.3
=(3.8-0.9)×0.3,
=2.9×0.3,
=0.87;
④7 12
÷9+1 9
×5 12
=(7 12
+512
)×1 9
,=1×1 9
,=1 9
;⑤815
× (3 4
-1 2
)=8 15
×3 4
-8 15
×1 2
,=615
-4 15
,=2 15.
用遞等式計算,用遞等式計算 1 3 2 5 15 200 180 15 6(3 8 1 8 2) 0 3
1 3 2 5 15 1 3 15 2 5 15,5 6,11 200 180 15 6 200 12 6,200 72,128 3.8 1.8 2 0.3 3.8 0.9 0.3,2.9 0.3,0.87 7 12 9 1 9 5 12 7 12 512 1 9 1 1 9 1 9 815 3 4...
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