Tính giá trị của biểu thức:
a) 90 – ( 30 – 20) = ..........................
= ..........................
90 – 30 – 20 = ..........................
= ..........................
b) 100 – (60 + 10) = ..........................
= ..........................
100 - 60 + 10 = ..........................
= ..........................
c) 135 – (30 + 5) = ..........................
= ..........................
135 – 30 – 5 = ..........................
= ..........................
d) 70 + (40 – 10) = ..........................
= ..........................
70 + 40 – 10 = ..........................
= ..........................
10 +10-10+10-20+100 =???
100 : 2 = ?
100 : 10 = ?
100 : 20 = ?
100 : 100 = ?
100 - ( 20 + 30 ) = ?
2000 + ( 2000 - 1000 ) = ?
100 - ( 10 - 10 ) = ?
100+100:10*20+70=
100:10+20+30-10
100 + 100 : 10 * 20 +70 = .................................
100 * 100 + 200 = .......................................
1111+1111+1111+1111+1111+1111+1111+1111+1111+1111 = ....................................................................
1111 * 10 = ................................................................
100-20-20+50+60-70-100+90-80-10=?
ai giải nhanh nhất mình tich cho!
100 * ( 10 * 20 ) = ?
99 + 100 x 10
20 x 10 + 10
tính