10000000000000000x2+562+56+2+6526+59+2362323
Những câu hỏi liên quan
789. 2- 56+ (-95)+111+261+498-215+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12=?
789. 2- 56+ (-95)+111+261+498-215+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
= 1578- 56+ (-95)+111+261+498-215+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=1522+ (-95)+111+261+498-215+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=1427+111+261+498-215+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=1538+261+498-215+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=1799+498-215+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=2297-215+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=2082+49+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=2131+1236-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=3367-4591-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=-1224-56+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=-1280+4189+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=2909+48+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=2957+52-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=3009-1000-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=2009-500+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=1509+230+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=1739+32500-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=34239-5600+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=28639+2641+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=31280+853+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=32133+195-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=32328-564+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=31764+235+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=31999+4187+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=36186+9023177-5000000+562+159-90+459-420+562+235+489+71+12
=9059363-5000000+562+159-90+459-420+562+235+489+71+12
=4059363+562+159-90+459-420+562+235+489+71+12
=4059925+159-90+459-420+562+235+489+71+12
=4060084-90+459-420+562+235+489+71+12
=4059994+459-420+562+235+489+71+12
=4060453-420+562+235+489+71+12
=4060033+562+235+489+71+12
=4060595+235+489+71+12
=4060830+489+71+12
=4061319+71+12=4061402
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Tính
a/
25
49
+
−
2017
0
+
−
2
7
b/
−
5
6
2
−
5
.
−
1
12
−...
Đọc tiếp
Tính
a/ 25 49 + − 2017 0 + − 2 7
b/ − 5 6 2 − 5 . − 1 12 − 5 9 − 7 12
c/ − 3 2 2 − 1 2 : − 1 − 1 − 81 . 1 3 2
d/ − 2 3 + 5 8 : 11 9 + 5 8 + 5 12 : 11 9
lammmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
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làm sao để nhấm đc vào phần tin nhắn nhề
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15-6526
15-245
Bỏ ngoặc rồi tính: 1. (56+47)-(56-53+40) 2. (34+59)-(34-41-100) 3. (109+34)-(109-66+10)
1.\(=56+47-56+53-40\)
\(=\left(56-56\right)+\left(47+53\right)-40\)
\(=0+100-40=60\)
2.\(34+59-34+41+100\)
\(=\left(34-34\right)+\left(59+41\right)+100\)
\(=0+100+100=200\)
3.\(=109+34-109+66-10\)
\(=\left(109-109\right)+\left(34+66\right)-10\)
\(=0+100-10=90\)
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59*59*59*58*57*56*55*54 có chữ số tận cùng
là 0 nha bn
~~ tk mk đi ~~
Ai tk mk mk tk lại ~~ ^^
Kb vs mk nha m.n ~~ n_n
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Xem thêm câu trả lời
125 + 645 =
56 + 45 =
5565 - 421 =
562 - 65 =
5233 + 456 = ???
Nhớ kb và làm Đ nha
125+645=770
56+45=101
5565-421=5144
562-65=497
5233+456=5689
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= 770
= 101
= 5144
= 497
= 5689
TK CHO MK NHA CÁC BẠN MK ĐG BỊ ÂM ĐIỂM
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Xem thêm câu trả lời
1+2+3+4+......+100+50+53+56+59+...+197
\(Ta có : 1 + 2 + 3 + ... + 100+ 50 + 53\)\( + ... + 197\)
\(= ( 1 + 2 + 3 + ... + 100 ) + ( 50 + 53 + ...\)\(+ 197)\)
\(=[(100+1)÷1+1].[(100+1)÷2]+ \)\([ ( 197 - 50) ÷3+ 1 ] . [ ( 197+ 1)÷2]\)
\(=5050 + 6175\)
\(= 11225\)
Cs bn lm đúng òi đs
Gọi dãy A= 1+2+3+4+.... 100
Dãy A có số số hạng là
[100-1]:1+1=100
Tổng dãy A là
[100+1] * 100:2 = 5050
Gọi dãy B = 50+53+56+59+......+197
Dãy B có số số hạng là
[197- 50 ]:3+1=50
Tổng dãy B là
[197+50] *50:2=6175
Dãy 1+2+3+4+......+100+50+53+56+59+...+197 có tổng là
6175+5050=11225
ĐÁP SỐ 11225
Chứng minh rằng:
a/ A = 2+2^2+2^3+....+2^60 chia hết cho 15
b/ B = 1+5+5^2+5^3+....+5^56+5^59+5^59+5^98chia hết cho 31
a)A=2+2^2+2^3+...+2^60 chia hết cho 15
=>(2+2^2+2^3+2^4)+...+(2^57+2^58+2^59+2^60)
=>2.(1+2+2^2+2^3)+...+2^57+(1+2+2^2+2^3)
=>2.15+...+2^57.15
Vì 15 chia hết choo 15
=>a chia hết cho 15
b)B=1+5+5^2+5^3+...+5^56+5^59+5^98 chia hết cho 31
=>(1+5+5^2)+...+5^56.(1+5+5^2)
=>31+....+5^56.3vi2 31 chia hết cho 31
=>B chia hết cho 31
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Ta có :
=2+2^2+2^3+...+2^60 = 2(1+2+2^2+2^3) + 2^5(1+2+2^2+2^3) + ... + 2^57(1+2+2^2+2^3)
A=(2+2^5+...+2^57)*15 chia het cho 15
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31 - ( 27- (9 - 4 )2 )
23. 5 - 321 : 319 + 80
113 . 59 - 59 .57 + 56 .41