Question

70:14*80810:90*102900-183:3+142:2401-485:5*2

Answer 1

1.400
2.918
3.768
4.207

Answer 2

1. $\frac{70}{14} *80=400$

2. $\frac{810}{90} *102=918$

3. $900-\frac{183}{3} +\frac{142}{2} = 900-61+71=910$

4. $401-\frac{485}{5} *2= 401-194=207$

Answer 3

Let's solve the expression step by step:

Step 1: 70:14 = 5 Step 2: 80810:90 = 898 Step 3: 102900 - 183 = 102717 Step 4: 142:2401 = 0.0592 (approximated to 4 decimal places) Step 5: 485:5 = 97 Step 6: 97 * 2 = 194

Now, let's put it all together:

5 * 898 * 102717 - 0.0592 - 194

Step 7: Calculate the multiplication first:

5 * 898 = 4490 4490 * 102717 = 461431830

Step 8: Subtract 0.0592:

461431830 - 0.0592 = 461431829.9408

Step 9: Finally, subtract 194:

461431829.9408 - 194 ≈ 461431829.7468

So, the result of the expression is approximately 461431829.7468.