So i just revised this topic and i thought you would have to do 17 x 6000 which is 102000 and then add the decimal point before the last 0 because the dp is after the first digit in the question but in the mark scheme it simply says 1020??? But that would only be if you did 17 x 60 but the question is saying 6000??
Well 0.17=17/100 so 0.17x6000=(17/100)x6000=(17x6000)/100. You're out by a factor of 10 basically but I'm dying to give you the intuition of why you divide by 10 or 100 or whatever in general. Hope this helps
Well 0.17=17/100 so 0.17x6000=(17/100)x6000=(17x6000)/100. You're out by a factor of 10 basically but I'm dying to give you the intuition of why you divide by 10 or 100 or whatever in general. Hope this helps
What's your reasoning for dividing by 10 after you do 17x6000? Maybe if you see that 0.17x6000=(0.1+0.07)x6000 then you can expand so it's just (0.1x6000)+(0.07x6000) I don't knos if this make sense to you or makes it any easier or whether you find that just as confusing.
Because when you move the decimal point in 0.17 you're timesing that by 10. So you need to divide by 10 on 6000. So if you've times'ed by 10 and divided by 10 ik the same equation, it's likw you've made no changes.
so... 0.05 ×1000 is the same as 0.5 ×100 or the same as 5 × 10
I don’t divide by 10. I do 17 x 6000 = 102000 then add the dp before the last 0 making it 10200.0
Ok by putting the decimal point where you do you are in fact just dividing by 10 essentially - maybe without realising it. The key thing here though is that you have to divide by 100 so the decimal point moves two places to the left not one.
I don’t divide by 10. I do 17 x 6000 = 102000 then add the dp before the last 0 making it 10200.0
not before the last zero, before the last 2 zeros bc there are 2 digits after the decimal place in 0.17, you move the decimal place twice when putting it back in if it were 0.6 for example, there is only one number after the decimal place, you youd only only move the decimal by one place when putting it back in
not before the last zero, before the last 2 zeros bc there are 2 digits after the decimal place in 0.17, you move the decimal place twice when putting it back in if it were 0.6 for example, there is only one number after the decimal place, you youd only only move the decimal by one place when putting it back in
Ok by putting the decimal point where you do you are in fact just dividing by 10 essentially - maybe without realising it. The key thing here though is that you have to divide by 100 so the decimal point moves two places to the left not one.