(1+ 2+ 3 +..... + 100) × (234 × 12 + 743 × 34) ×(960 – 80 × 12)=0
(1+ 2+ 3 +..... + 100) × (234 × 12 + 743 × 34) ×(960 – 80 × 12)=0
Tính: (1+ 2+ 3 +..... + 100) × (234 × 12 + 743 × 34) ×(960 – 80 × 12)
1.Tính:
a.135 : 5 + 12 x3 : 6 - 17
b.34 :[(80 :4 + 10) : 6 + 12 ] +100
2.tính nhanh:
A= 4+ 8+12 +.....+80
B= 2+4-6+8+10-12+...+62+62-66
Tính : ( 1 + 2 + ... + 100 ) x ( 1125 - 125 x 9 ) x ( 234 x 12 + 234 x 88 )
Tính nhanh
a) ( 1 + 1/2) x ( 1 + 1/3) x ( 1 + 1/4) x ……. X ( 1 + 1/2000)
b) 101 x 34 + 10,1 x 130 – 1,01 x 2700
c) 12/50 + 8% + 59/100 + 9%
Bài 1: tính
a) 34 - 2 : ( 3/5 - 1/12 )
b) 12 1/3 - ( 3 3/4 + 4 3/4 )
Ai biết làm nhanh dùm mình nha! cảm ơn mn!
a) ( 1 + 1/2) x ( 1 + 1/3) x ( 1 + 1/4) x ……. X ( 1 + 1/2000 )
b) 101 x 34 + 10,1 x 130 – 1,01 x 2700
c) 12/50 + 8% + 59/100 + 9%
tính k
3k+4k-23+100=100
2k=12+34-5
help me!!!!
1+12+23+34+...+89+100=?
tính nhanh:
A=3/34 x 10 1/12 x 8/9 x 2 1/8 x 3/13 x 26/37 x 1 9/11 x 3/4