5, 72 + 7, 22 + 8, 72 + 10, 22 +...+ 32, 72 + 34, 22
Những câu hỏi liên quan
5, 72 + 7, 22 + 8, 72 + 10, 22 + ...+ 32, 72 + 34, 22 = ?
Xem thêm câu trả lời
325+172-72+65 214+(-54)+(-14)+(-46)
245-[(32-22).10-5] 25.23-(9-14)+(29-34+20)
325+172-72+65
= (325 + 65) + (172 - 72)
= 390 + 100
= 490
214+(-54)+(-14)+(-46)
= (214 - 14) - (54+46)
= 200 - 100
= 100
245-[(32-22).10-5]
= 245 - [(9 - 4). 10 - 5]
= 245 - [5.10 - 5]
= 245 - [50 - 5]
= 245 - 45
= 200
25.23-(9-14)+(29-34+20)
= 25. 8 + (29 - 9) - (34 - 20 - 14)
= 200 + 20 - 0
= 220
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(-12).(7-72) -25.(55-42)
(39-19).(-2)+(34-22).5
25.(-2)3+25:(3-8)2
b: =20x(-2)+12x5
=-40+60
=20
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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|...
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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
Tính giá trị của biểu thức:
a) (- 12).(7 - 72) - 25.(55 - 43);
b) (39 - 19) : (- 2) + (34 - 22).5.
a) (-12). (7 - 72) - 25. (55 - 43)
= (-12). (- 65) - 25. 12
= 12. 65 – 12. 25
= 12. (65 - 25)
= 12. 40
= 480
b) (39 - 19) : (- 2) + (34 - 22). 5
= 20 : (- 2) + 12. 5
= - 10 + 60
= 60 - 10
= 50.
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Bài 1: Tính một cách hợp lí:
1) 2155 - ( 174 + 2155 ) + ( -68 + 174 ) 7) -1911 - ( 1234 - 1911 )
2) -25 . 72 + 25 . 21 - 49 . 25 8) 156 . 72 + 28 . 156
3) 35 . ( 14 - 23 ) - 23 . ( 14 - 35 ) 9) 32. ( -39 ) + 16 . ( -22 )
4) 8154 - ( 674 + 8154 ) + ( -98 + 674 ) 10) -1945 - ( 567 - 1945 )
5) -25 . 21 + 25 ....
Đọc tiếp
Bài 1: Tính một cách hợp lí:
1) 2155 - ( 174 + 2155 ) + ( -68 + 174 ) 7) -1911 - ( 1234 - 1911 )
2) -25 . 72 + 25 . 21 - 49 . 25 8) 156 . 72 + 28 . 156
3) 35 . ( 14 - 23 ) - 23 . ( 14 - 35 ) 9) 32. ( -39 ) + 16 . ( -22 )
4) 8154 - ( 674 + 8154 ) + ( -98 + 674 ) 10) -1945 - ( 567 - 1945 )
5) -25 . 21 + 25 . 72 + 49 . 25 11) 184 . 33 + 67 . 184
6) 27 . ( 13 - 16 ) - 16 . ( 13 - 27) 12) 44 . ( -36 ) + 22 . ( -28 )
1) 2155-(174+2155)+(-68+174-7)-1911-(1234-1911)
=2155-174-2155+(-68)+174-7-1911-1234+1911
=(2155-2155)+(174-174)+(1911-1911)-(68+7+1234)
= 0 + 0 + 0 - 1309
= -1309
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bài 1: tính nhanh
ví dụ 3/8+5/7+45/72+22/77
=(3/8+45/72)+(5/7+22/77)
=1+1
=2
a, 1/2x2/7+3/7:2+1/2:7/2
mình đang cần gấp, cảm ơn
Bài 1: Tính hợp lí nhất
1, 2155– (174 + 2155) + (-68 + 174)
2, -25 . 72 + 25 . 21 – 49 . 25
3, 35(14 –23) – 23(14–35)
4, 8154– (674 + 8154) + (–98 + 674) 5, – 25 . 21 + 25 . 72 + 49 . 25
6, 27(13 – 16) – 16(13 – 27)
7, –1911 – (1234 – 1911)
8, 156.72 + 28.156
9, 32.( -39) + 16.( –22)
10, –1945 – ( 567– 1945)
11, 184.33 + 67.184
12, 44.( –36) + 22.( –28)
câu 1 = -68
câu 2 =-2500
câu 3=168
câu 4 =4571
câu 6=124
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Tính giá trị của biểu thức :
a) (-12) . (7 - 72) - 25 . (55 - 43)
b) (39 - 19) : (-2) + (34 - 22) . 5
a) (-12).(7-72)-25.(55-43)
=(-12).(-65)-25.12
=12.(65-25)
=12.40
=480
b) (39-19):(-2)+(34-22).5
=20:(-2)+12.5
=-10+60
^HT^
a) (-12).(7-72)-25.(55-43)
=(-12).(-65)-25.12
=12.(65-25)
=12.40
=480
b) (39-19):(-2)+(34-22).5
=20:(-2)+12.5
=-10+60
a.
(- 12) . (7 - 72) - 25.(55 - 43)
= -12 . (-65) - 25 . 12
= 780 - 300
= 480
b.
(39 - 19) : (- 2) + (34 - 22).5
= 20 : (-2) + 12 . 5
= -10 + 60
= 50
Tick cho mình nhé !