58 - 39 = ?
98 -57 = ?
285 - 274 = ?
784 - 584 = ?
Những câu hỏi liên quan
hy?mik hỏi nềk ? cs ai bt eff hôn eff hộ mềnh nka , gửi anhr shau! code oc : ||||uwuHARU_ko|white||vn|||200|39|72|5|11|9|1|0|1|0|1|1|95|98|20|0|0|72|72|1|1|58|58|53|0|57|92|88|0|7|7|56|6|6|0|86|86|22|22|82|82|77|77|55|95|0|0|34|34|35|1|80|0|0|0|21|21|0|0|1|1|0|2|2|2|6|0|11|11|1|7|1|17|6|1|1|1|1|1|1|0|0|0|6|0|5|1|0|1|1|1|1|0|0|0|0|0|0|-1|8|12|-6|0|-1|8|12|6|-4|0|18|10|0|4|0|18|10|0|1|12|11|14|-3|-1|12|11|14|3|12|-3|11|18|0|4|-8|5|12|21|4|4|4|19|0|3|70|17|17|324|0|-4|3|19|0|-8|8|1|15|0|-4|-10|2|...
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hy?mik hỏi nềk ? cs ai bt eff hôn eff hộ mềnh nka , gửi anhr shau! code oc : ||||uwuHARU_ko|white||vn|||200|39|72|5|11|9|1|0|1|0|1|1|95|98|20|0|0|72|72|1|1|58|58|53|0|57|92|88|0|7|7|56|6|6|0|86|86|22|22|82|82|77|77|55|95|0|0|34|34|35|1|80|0|0|0|21|21|0|0|1|1|0|2|2|2|6|0|11|11|1|7|1|17|6|1|1|1|1|1|1|0|0|0|6|0|5|1|0|1|1|1|1|0|0|0|0|0|0|-1|8|12|-6|0|-1|8|12|6|-4|0|18|10|0|4|0|18|10|0|1|12|11|14|-3|-1|12|11|14|3|12|-3|11|18|0|4|-8|5|12|21|4|4|4|19|0|3|70|17|17|324|0|-4|3|19|0|-8|8|1|15|0|-4|-10|2|12|0|-50|34|12|12|18|-16|-12|9|12|0|0|-2|1|12|0|-7|-9|4|12|0|1|15|3|20|16|0|0|2|16|12|342|1|3|1|3|3|4|6|6|1|1|21|1|357|1|1|0|0|1|1|0|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|1|327|-219|0|1|1|11|1|0|0|18|20|3|10|84|20|18|180|2|2|0|-10|0|0|0|0|0|1|1|1|0|0|-2|-10|14|44|0|0|0|0|FFF3E7|D00447|EEC07A|874C12|EEC07A|EEC07A|874C12|EEC07A|EEC07A|874C12|EEC07A|EEC07A|874C12|EEC07A|BB9178|8A624F|BB9178|24214D|FFFFFF|A19E78|A19E78|27170F|A19E78|A19E78|27170F|FFFFFF|FFFFFF|FFFFFF|FFFFFF|4F513A|4F513A|4F513A|4F513A|191919|020202|ECECEC|191919|020202|191919|FF3F3F|020202|FF3F3F|FFDEC4|FFDEC4|FFDEC4|FF3F3F|020202|FFFFFF|FFFFFF|FF8383|A30337|FFFFFF|71AA6D|3B5838|71AA6D|B4BFCD|2F3848|B4BFCD|FFFFFF|AA657F|FFFFFF|191919|FFFFFF|DBB0B0|FFFFFF|CB8DA8|FFDBEF|FFFFFF|020202|191919|8AAEFF|00132C|FFFFFF|8AAEFF|00132C|8AAEFF|8AAEFF|00132C|8AAEFF|FFFFFF|8C4A4A|FFFFFF|FFFFFF|ECECEC|FFFFFF|191919|020202|191919|191919|020202|191919|FFFFFF|00232C|FFFFFF|191919|020202|191919|FFFFFF|646D7B|FFFFFF|FFFFFF|646D7B|FFFFFF|FFFFFF|00132C|8AAEFF|FFFFFF|00132C|8AAEFF|7B7B7B|020202|2F3848|7B7B7B|020202|2F3848|D00447|720226|FFFFFF|8AAEFF|00132C|8AAEFF|8AAEFF|00132C|FFFFFF|FFFFFF|020202|A487FF|FFFFFF|020202|A487FF|AAA7CB|08016D|AAA7CB|333333|191919|FFFFFF|FF3F3F|020202|FFFFFF|FF3F3F|020202|191919|8589FF|020202|FFFFFF|8589FF|020202|FFFFFF|191919|020202|B4BFCD|FFFFFF|93A1B1|FFFFFF|020202|8C4A4A|020202|FFFFFF|020202|FFFFFF|020202|CB8989|FFFFFF|CB8989|020202|020202
Kết quả của phép trừ 84 709 – 26 435 là:
A.58 274
B.58 374
C.68 274
D.111 144
gtyertgvftygfdgdfhgyukhjgyutyi7uyyuyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyuyufgy
Có bao nhiêu tập hợp con của các t ập hợp sau :
A) B = { 1 ; 2 ; 3 ; 4 }
B) C = { 57 ; 58 ; 90 ; 98 }
a) B co 13 tap hop con
b) C co 13 tap hop con
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Nguyễn Lê Huy Hoàng, a) có 13 tập hợp con
b) có 13 tập hợp con, bạn tự liệt kê ra nha!
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(546+545+544):(539.55)
(1259+1258+1257):(1256+1257+1258)
\(\left(5^{46}+5^{45}+5^{44}\right):\left(5^{39}.5^5\right)=5^{44}.\left(1+5+5^2\right):5^{44}=1+5+5^2=31\)
\(\left(12^{59}+12^{58}+12^{57}\right):\left(12^{56}+12^{57}+12^{58}\right)\)
=\(12^{57}.\left(12^2+12+1\right):\left[12^{56}.\left(1+12+12^2\right)\right]\)
=12
**** mình nha bạn !!!!!!!!!
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a)(546+545+544):(539.55)
b)(1259+1258+1257):(1256+1257+1258)
50. √(98-16√3)
51. √(2-√3)
52. √(4+√15)
53. √(5-√21)
54. √(6-√35)
55. √(2+√3)
56. √(4-√15)
57. √(8-√55)
58. √(7+√33)
59. √(6+√35)
60. √(7-3√5)
50) \(\sqrt{98-16\sqrt{3}}=4\sqrt{6}-\sqrt{2}\)
51) \(\sqrt{2-\sqrt{3}}=\dfrac{\sqrt{4-2\sqrt{3}}}{\sqrt{2}}=\dfrac{\sqrt{3}-1}{\sqrt{2}}=\dfrac{\sqrt{6}-\sqrt{2}}{2}\)
52) \(\sqrt{4+\sqrt{15}}=\dfrac{\sqrt{8+2\sqrt{15}}}{\sqrt{2}}=\dfrac{\sqrt{5}+\sqrt{3}}{\sqrt{2}}=\dfrac{\sqrt{10}+\sqrt{6}}{2}\)
53) \(\sqrt{5-\sqrt{21}}=\dfrac{\sqrt{10-2\sqrt{21}}}{\sqrt{2}}=\dfrac{\sqrt{14}-\sqrt{6}}{2}\)
54) \(\sqrt{6-\sqrt{35}}=\dfrac{\sqrt{12-2\sqrt{35}}}{\sqrt{2}}=\dfrac{\sqrt{14}-\sqrt{10}}{2}\)
55) \(\sqrt{2+\sqrt{3}}=\dfrac{\sqrt{4+2\sqrt{3}}}{\sqrt{2}}=\dfrac{\sqrt{6}+\sqrt{2}}{2}\)
56) \(\sqrt{4-\sqrt{15}}=\dfrac{\sqrt{8-2\sqrt{15}}}{\sqrt{2}}=\dfrac{\sqrt{10}-\sqrt{6}}{2}\)
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Đặt tính rồi tính:
a) 45 - 16 65 – 27
95 - 58 75 - 39
b) 96 - 77 56 – 18
66 - 29 77 - 48
c) 57 - 49 68 – 39
88 - 29 55 - 19
Phương pháp giải:
- Đặt tính: Viết phép tính sao cho các chữ số cùng hàng thẳng cột với nhau.
- Tính: Trừ các số lần lượt từ phải sang trái.
Lời giải chi tiết:
a)
c)
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A , 324x49:98+4674:82x19
B , 156+6794:79
C , 7055: 83+124+784:23x46
D , 1005-38892:42
A , 324x49:98+4674:82x19
=15876:98+4674:82x19
=1984.5+4674:82x19
=1984.5+1083
=3067.5
B , 156+6794:79
=156+86
=242
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A.324 x 49 : 98 + 4674 : 82 x 19
=15876 : 98 + 4674 : 82 x 19
=1984.5 + 4674 : 82 x 19
=1984.5 + 1083
=3067.5
B.156+6794:79
=156+86
=242
C. 7055 : 83 + 124
= 85 + 124
= 209
C.784 x 23 : 46
= 18032 : 46
= 392
D. 1005 - 38892 : 42
= 1005 - 926
= 79
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C , 7055: 83+124+784:23x46
=85+124+784:23x46
=209+1568
=1777
D , 1005 - 38892 : 42
= 1005 - 926
= 79
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56. Although he works hard, he cant support his large family. Despite ……………………………………………………..57. If you dont hurry up, you will miss the train. Unless ………………………………………………………………58. He doesnt play football well. - He wishes ………………………………………………..59. We have two children, a son and a daughter. They said. - They said that ……………60. She started learning English three years ago. She has ……………………..61. If I were you, I would save some money. She said to me. -She advised …………. ………………..62. People say that thi...
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56. Although he works hard, he can't support his large family. > Despite ……………………………………………………..
57. If you don't hurry up, you will miss the train. >Unless ………………………………………………………………
58. He doesn't play football well. -> He wishes ………………………………………………..
59. "We have two children, a son and a daughter." They said. -> They said that ……………
60. She started learning English three years ago. >She has ……………………..
61. "If I were you, I would save some money." She said to me. ->She advised …………. ………………..
62. People say that this house was built last century. -> This house …………………………..
63. “Why don't you finish your homework before 10 pm, Nga?" Nga's friend said. -> Nga's friend suggested that she ……………………..
64. He is the most intelligent student in his class. -> No student ……………………….
65. “I'm sorry I didn't phone you earlier." Jane said to me -> Jane apologized ………………………………………………………………