Các câu hỏi tương tự
Tính Nhanh
19.64+ 76.34
35.12 + 65.13
136.68+16.272
(2+4+6+....+100). (36.33-108.111)
19991999.1998 - 19981998. 1999
101+100+99+98....+3+2+1 / 101- 100+ 99- 98...+3-2+1
Tinh nhanh [28.54+56.36]:21:2 [5.4/11-3.16/5]:4/10 36.33-105.11+22-15
Tính nhanh:
a) 92.17 + 83.92;
b) 108.12 + 25.92 + 13. 108;
c) 1 + 3 + 5 +... + 39;
d) 2 + 7 + 12 + 17 + …+ 62.
36.33-105.11+22.15
-1-2-3-4-5-.......-100
-2-4-6-8-....-100
-6-9-12-15-......-99
-1+2-3+4-5+6-......-99+100
4-8+12-16+...........+196-200
bài 1
A=1*2*3+2*3*4+3*4*5+...+99*100*101
B=1*3*5+3*5*7+...+95*97*99
C=2*4+4*6+..+98*100
D=1*2+3*4+5*6+...+99*100
E=1^2+2^2+3^2+...+100^2
G=1*3+2*4+3*5+4*6+...+99*101+100*102
H=1*2^2+2*3^2+3*4^2+...+99*100^2
I=1*2*3+3*4*5+5*6*7+7*8*9+...+98*99*100
K=1^2+3^2+5^2+...+99^2
-1-2-3-4-5-6........-100
1-2+3-4+5-6+......+99-100
M=1÷2×3÷4×5÷6×...×99÷100 & N=2÷3×4÷5×6÷7×...×100÷101
(1+1+2+2+3+3+4+4+5+5+6+6+7+7+8+8+...+100+100).(89.2)