How to calculate 16.17-11.28 + 3.83-1.72

How to calculate 16.17-11.28 + 3.83-1.72

16.17-11.28+3.83-1.72
=16.17+3.83-（11.28+1.72）
=20-13
=7

8% × 17 × 125% and 18 △ 0.25 and 60 × (5 / 12-1 / 5) and (80-9.8) × 0.6-2.12

0.8%×17×125%=(8/1000)×17×(125/100)=(17×8×125)/(1000×100)=(17×1000)/(1000×100)=0.1718÷0.25=18÷1/4=18×4=7260×(5/12-1/5)=60×5/12-60×1/5=25-12=13（80-9.8）×0.6-2.12=70.2×0.6-2.12=70×0.6+...

The figure is 1 × 2 + 2 × 3 + 3 × 4 + +The program block diagram of 100 × 101 value is filled in the judgment box______ ．

From the known program function is as shown in the figure is to find 1 × 2 + 2 × 3 + 3 × 4 + +For the value of 100 × 101, the initial value of the cyclic variable is 1, and the step length is 1. From S = S + I (i-1), the final value of the cyclic variable I should be 101. Therefore, when I > 101 (I ≥ 102), the cycle should be ended. Therefore, I > 101 (I ≥ 102) should be filled in the judgment box, so the answer is: I > 101 (I ≥ 102)

1×2+2×3+… +100×101=______ ．

1×2+2×3+3×4+… +100×101=（12+1）+（22+2）+（32+3）+… +（1002+100）=（12+22+32+… +1002）+（1+2+3+… +100) = 100 (100 + 1) (2 × 100 + 1) 6 + 100 × (100 + 1) 2 = 338350 + 5050 = 343400, so the answer is: 343400