Showing posts with label Subtraction. Show all posts
Showing posts with label Subtraction. Show all posts

Monday, 27 February 2012

Addition and subtraction

Addition and Subtraction (also repeated in 4th grade math)
Addition:Adding two numbers by arranging them in equal place values is called as Addition
Studens till Grade III learn about this concept Clearly
Addition of Single digit numbers :Add the same place value digits with each other and if sum is greater than 9 then carry forward it to next place value digit
Examples: 2+3=?
Answer: 5
Examples: 6+9=?
Answer: 15
Examples: 1+4=?
Answer: 5
Examples: 5 + 3=?
Answer: 8
Examples: 2+8=?
Answer: 10
Examples: 9+4=?
Answer: 13
Addition of two digit numbers :
Examples: 73+11=?
Answer: 84
Examples: 12+53=?
Answer: 65
Examples: 18+49=?
Answer: 67
Examples: 16+82=?
Answer: 98
Examples: 55+34=?
Answer: 89
Examples: 66+33=?
Answer: 99
Examples: 89+71=?
Answer: 160
Examples: 31+51=?
Answer: 82
Examples: 06+10=?
Answer: 16
Examples: 25+26=?
Answer: 51
Examples: 60+83=?
Answer: 143
Examples: 83+57=?
Answer: 140
Examples: 97+60=?
Answer: 157
Examples: 23+34=?
Answer: 57
Examples: 63+42=?
Answer: 105
Examples: 98+29=?
Answer: 127
Examples: 78+77=?
Answer: 155
Examples: 29+77=?
Answer: 106
Examples: 30+99=?
Answer: 129
Examples: 10+20=?
Answer: 30
Examples: 37+21=?
Answer: 58
Examples: 29+39=?
Answer: 68
Examples: 43+21=?
Answer: 64
Examples: 22+70=?
Answer: 92
Examples: 72+31=?
Answer: 103
Examples: 42+61=?
Answer: 103
Examples: 90+20=?
Answer: 110
Subtraction: The number which is subtracted is called as subtrend
Subtraction of single digit number: (also read how to subtract integers)
Examples: 9-2=?
Answer: 7

Examples: 3-2=?
Answer: 1
Examples: 8-1=?
Answer: 7
Examples: 9-4=?
Answer: 5
Examples: 4-2=?
Answer: 2
Examples: 6- 1=?
Answer: 5
Examples:  5- 3=?
Answer: 2
Examples: 8- 3=?
Answer: 5
Subtraction of two digit numbers :Arrange the place value digits and if one digit is smaller than subtrend then we have to carry from the nect place value digit
Examples: 72-21=?
Answer: 51
Examples: 33-10=?
Answer: 23
Examples: 89-13=?
Answer: 76
Examples: 56-32=?
Answer: 24
Examples: 61- 11=?
Answer: 50


Examples: 38- 18=?
Answer: 20

Examples: 42- 38=?
Answer: 4
Examples: 79-35=?
Answer: 54
Examples: 75-60=?
Answer: 15
Examples: 39-17=?
Answer: 22
 Examples: 88-48=?
Answer: 40
Examples: 59-52=?
Answer: 7
Examples: 70-35=?
Answer: 35
Examples: 44-39=?
Answer: 5
Examples: 78-67=?
Answer: 11
Examples: 61-15=?
Answer: 46
 Examples: 56-42=?
Answer: 14
Examples: 43-16=?
Answer: 27
Examples: 88- 55=?
Answer: 33

Examples: 67-21=?
Answer: 46

Examples: 47-32=?
Answer: 15

Examples: 99- 42=?
Answer: 57

Examples: 55-36=?
Answer: 19

In upcoming posts we will discuss about Odd and even numbers and Rounding numbers. Visit our website for information on Tamilnadu Board Statistics Sample Papers