Page 208 - New Medley 2 Semester 1
P. 208
Subtraction of 3-Digit Numbers by Regrouping
565 – 224 = 5 hundreds + 6 tens + 5 ones – 2 hundreds + 2 tens + 4 ones
= 5 – 2 hundreds + 6 – 2 tens + 5 – 4 ones
= 3 hundreds + 4 tens + 1 one
= 341
EXERCISE 3.1
Now let us subtract the following.
1. 649 – 322
= hundreds + tens + ones – hundreds + tens + ones
= – hundreds + – tens + – ones
= hundreds + tens + ones =
2. 572 – 341
= hundreds + tens + ones – hundreds + tens + ones
= – hundreds + – tens + – ones
= hundreds + tens + ones =
3. 748 – 315
= hundreds + tens + ones – hundreds + tens + ones
= – hundreds + – tens + – ones
= hundreds + tens + ones =
4. 835 – 514
= hundreds + tens + ones – hundreds + tens + ones
= – hundreds + – tens + – ones
= hundreds + tens + ones =
122
