Page 199 - New Medley 2 Semester 1
P. 199
Addition of 3-Digit Numbers by Grouping
313 + 524 = 3 hundreds + 1 tens + 3 ones + 5 hundreds + 2 tens + 4 ones
= 3 + 5 hundreds + 1 + 2 tens + 3 + 4 ones
= 8 hundreds + 3 tens + 7 ones
= 837
EXERCISE 2.1
Now let us add the following.
1. 319 + 430
= hundreds + tens + ones + hundreds + tens + ones
= + hundreds + + tens + + ones
= hundreds + tens + ones =
2. 532 + 241
= hundreds + tens + ones + hundreds + tens + ones
= + hundreds + + tens + + ones
= hundreds + tens + ones =
3. 348 + 420
= hundreds + tens + ones + hundreds + tens + ones
= + hundreds + + tens + + ones
= hundreds + tens + ones =
4. 135 + 604
= hundreds + tens + ones + hundreds + tens + ones
= + hundreds + + tens + + ones
= hundreds + tens + ones =
113
