150 - 40 × 20 × 5 × 0.5 × 0.25 × 0.2 - 5 - 0.1
các bạn giải tri tiết giup mik nhé
Lesson 5: Find the value of a so that (a: 0.1) + (a : 0.2) + ( a : 0.5) + ( a : 0.25 ) + ( a : 0.125) = 290
\(\frac{25×4-0.5×40×5×0.2×20×0.25}{1+2+4+8...+128+256}\)
tính nhanh:
1/90:0.25+1/90:0.2+1/90:0.5+1/90:0.125-1/90:0.1
9.6 : 0.2 * 15.4 * 0.2 * 15.4 * 0.25 .
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30.8 : 0.5 * 7.7 : 0.125 * 5 * 6
19.8 ;0.2*44.44*2*13.2:0.25/3.3*88.88*0.5*6.6:0.125*5
[1000*0.1-900*0.1-90*0.1]*[142*0.5-240*0.25]
(100*0.1-900*0.1-90*0.1)*(142*0.5-240*0.25)=?
(19.8 : 0.2 x 44.44 x 2 x 13.2 : 0.25) : (3.3 x 88.88 x 0.5 x 6.6 : 0.12 x 5