Word Problems On Estimating Addition And Subtraction
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00:00hi kids today let's do some more addition and subtraction there are three
00:10famous bakeries in the city and here is a table showing number of pastries and
00:19buns sold in three bakeries in the last week we have to find out answers to a
00:29few questions using the table how many pastries and buns were sold in diamond
00:39bakery let's answer the question
00:46question is to find out pastries and buns remember whenever there are words
00:55like more join all together in all this and that total of all together we have
01:10to find the answer by adding so we have to add the number of pastries and buns
01:20and of a particular bakery that is diamond bakery so we will add the
01:30pastries and buns sold by diamond bakery
01:36first of all write all numbers in order to add them that is write each numeral
01:46below the mark of its place value by adding the numbers we got 1050 so 1050
02:01buns and pastries were sold by diamond bakery now let's answer next question
02:14how many pastries were sold in total in all the bakeries let's answer the
02:23question question is to find out total pastries sold so add up all the pastries
02:34sold from all the bakeries for that first of all write all the numbers in
02:42order to add them write each numeral below the mark of its place value adding
02:53all the numbers we got 950 so 950 pastries were sold in total in all
03:05bakeries good now let's answer another question how many buns sold in total in
03:17all the bakeries let's answer the question question is to find out total
03:26number of buns sold so add up all the buns sold from all the bakeries first of
03:36all write all numbers in order to add them that is write each numeral below
03:44the mark of its place value so 1550 buns were sold in total in all the
03:56bakeries good now let's answer another question how many fewer pastries were
04:08sold than buns we are asked to find how many fewer pastries remember whenever
04:18there are words like left fewer fly away take away we have to find the
04:28difference that is we have to use subtraction so we have to find a
04:37difference between the number of buns and number of pastries sold number of
04:44buns sold are 1550 number of pastries sold are 950 so how many fewer pastries
04:59sold 1550 minus 950 remember always write bigger numbers above the smaller
05:14number when you are subtracting also write down the numbers below the mark of
05:23their place value subtracting them we got 600 so 600 fewer pastries were sold
05:35than buns good now let's move on to another example an electronics store in
05:48the city recorded its sale of laptops for the past five years we have answered
05:57the question based on this table so let's start how many laptops were sold
06:07in the year 2012 let's answer the question we can see from the table that
06:18400 laptops were sold in the year 2012 now how many laptops were sold in total
06:30in 2012 and 2013 let's answer the question we are asked to find the laptop
06:41sold in total in 2012 and 2013 so we have to add the laptops sold in 2012 and
06:542013 so from the table we see 400 laptops were sold in 2012 and 500 sold
07:08in 2013 adding both the numbers we got 900 hence 900 laptops were sold in total
07:22in two years now let's move on to another question how many more laptops
07:32were sold in the year 2015 then in 2014 let's answer the question we are asked
07:46to find out how many more in 2015 then 2014 so we have to subtract the fewer
07:57from more to get the difference from the table we see 750 laptops were sold
08:08in 2015 and 500 were sold in 2014 so we have to subtract 500 from 750 by
08:25subtracting we get 250 hence we got it answer is 250 more laptops were sold in
08:422015 then 2014 now let's answer another question
08:51the brand expects 100 more in 2016 then 2015 how many laptop expected to be sold
09:04in 2016 we are given that 100 more are expected in 2016 then 2015 thus we have
09:20to add 100 laptops in the laptop sold in 2015 from the table we see that 750
09:32laptops were sold in 2015 so adding 100 to it we got 850 so 850 laptops are
09:48expected to be sold in 2016 now let's answer another question
10:00the brand expects 100 fewer laptops to be sold in 2017 then 2015 how many
10:13laptops are expected to be sold in 2017 let's answer the question we are given
10:24that 100 fewer laptops are expected to be sold in 2017 then 2015 thus we have
10:37to subtract 100 laptops from the laptop sold in 2015 from the table we see that
10:49750 laptops were sold in 2015 so subtract 100 laptops from it we get 650
11:03so 650 laptops are expected to be sold in 2017 good so now we have learned how
11:19to read the data given to us in tables and whether adding or subtracting will
11:27give us the answer for a given question so kids now you may go ahead and take a
11:33quiz to learn more bye bye