We will go over about addition of 2-digit numbers with regrouping utilizing brief kind:
Let’s attempt to resolve the copying:
A. Addition of Two 2-Digit Numbers:
1. Include 44 and 39.
Solution:
To discover the amount, we take the following actions:
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Step I: Write the provided numbers in column kind as revealed: Step II: Add the ones: 4 ones + 9 ones = 13 ones = 1 10 + 3 ones (* ) Write 3 under ones column and rollover 1 to 10s column. Step III: |
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Add the 10s: 4 10s + 3 10s + 1 10 (rollovered) = 8 10s 44 Write 8 under 10s column. B. Addition of Three 2-Digit Numbers: |
We can include 3 numbers likewise by the approach provided above.
1. Include 13, 24 and 54.
Solution:
To discover the amount, we compose the numbers in column kind and include columnwise.
Thus, the amount of 13, 24 and 54 is 91.
Questions and Answers on Addition of 2-Digit Numbers utilizing Short Form:
1. Include the following Two 2-Digit Numbers utilizing Short Form:
( i) 77 + 18 = _____
( ii) 28 + 36 = _____
( iii) 56 + 29 = _____
( iv) 68 + 15 = _____
( v) 32 + 49 = _____
( vi) 49 + 23 = _____
( vii) 55 + 28 = _____
( viii) 41 + 39 = _____
Answer:
1.
( i) 95( ii) 64
( iii) 85
( iv) 83
( v) 81
( vi) 72
( vii) 83
( viii) 80
2. Include the following Thee 2-Digit Numbers utilizing Short Form:
( i) 52 + 15 + 18 = _____
( ii) 48 + 12 + 24 = _____
( iii) 36 + 19 + 23 = _____
( iv) 65 + 12 + 14 = _____
( v) 15 + 37 + 27 = _____
( vi) 24 + 25 + 32 = _____
( vii) 35 + 24 + 28 = _____
( viii) 59 + 11 + 21 = _____
Answer:
2.
( i) 85( ii) 84
( iii) 78
( iv) 91
( v) 79
( vi) 81
( vii) 87
( viii) 91
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