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 Post subject: 5 for friday
PostPosted: Fri Feb 08, 2013 10:57 am 
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Joined: Wed Sep 19, 2012 4:17 pm
Posts: 1306
Location: St. Moritz
Answer these questions without using a calculator:

1. 349 x 25 =

2. 714 ÷ 34 =

3. There are 365 days in a year, and each day has 24 hours in it. How many hours are there in a year?

4. After a school trip, there's £532 left over. The school decides to share this out between the 38 students on the trip. How much does each student receive?

5. A cardboard box weighs 247 grams. It contains 48 smaller boxes, each weighing 127 grams. What's the total weight of the large box and its contents?

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 Post subject: Re: 5 for friday
PostPosted: Fri Feb 08, 2013 11:34 am 
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Joined: Fri Aug 18, 2006 7:20 am
Posts: 18501
Location: Up Jack's Arse in America
1.
349 x 10 = 3490
3490 x 2 = 6980
3490 / 2 = 1745
6980 + 1745 = 8725
Answer = 8725

2.
34 x 10 = 340
340 x 2 = 680
680 + 34 = 714
Answer = 21

3.
365 x 10 = 3650
3650 x 2 = 7300
365 x 4 = 1460
7300 + 1460 = 8760
Answer = 8760

4.
38 x 10 = 380
532 - 380 = 152
152 / 38 = 4
10 + 4 = 14
Answer = 14

5.
127 x 10 = 1270
1270 x 5 = 6350
127 x 2 = 254
6350 - 254 = 6096
6096 + 247 = 6343
Answer = 6343

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 Post subject: Re: 5 for friday
PostPosted: Fri Feb 08, 2013 1:09 pm 
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Joined: Tue Oct 16, 2007 7:40 pm
Posts: 3555
Location: Still trying to find myself
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 Post subject: Re: 5 for friday
PostPosted: Fri Feb 08, 2013 2:15 pm 
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Joined: Wed Sep 19, 2012 4:17 pm
Posts: 1306
Location: St. Moritz
Mr Ripper wrote:
1.
349 x 10 = 3490
3490 x 2 = 6980
3490 / 2 = 1745
6980 + 1745 = 8725
Answer = 8725

2.
34 x 10 = 340
340 x 2 = 680
680 + 34 = 714
Answer = 21

3.
365 x 10 = 3650
3650 x 2 = 7300
365 x 4 = 1460
7300 + 1460 = 8760
Answer = 8760

4.
38 x 10 = 380
532 - 380 = 152
152 / 38 = 4
10 + 4 = 14
Answer = 14

5.
127 x 10 = 1270
1270 x 5 = 6350
127 x 2 = 254
6350 - 254 = 6096
6096 + 247 = 6343
Answer = 6343


All correct 50 points to Slytherin :cool:

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