Page 216 - NUMINO TG_4A
P. 216
14Different Signs Unit
2. Have the students learn how to divide a
3-digit number by a multiple of 10.
Place the first digit.
Estimate to place the first digit in the
quotient.
What is the quotient of 360 50? About 7
What is the quotient of 370 50? About 7
In both estimates, the first digit is in the
ones place. So, place the first digit in the
ones place.
Divide the ones.
Multiply. 50 7 350
Subtract. 368 350 18
Compare. 18 50
Remainder 18
Check the answer.
7 50+18=350+18=368, it checks.
Have the students use the method shown
to find the quotient and remainder.
Problem:
If 495 oranges are divided equally among 40 people, some will remain. How many more oranges are
needed in order to have the oranges be divided equally with no remainder?
Answer:
495 40 12 r15. In order to have no remainder, some oranges must be added to 15 to make it 40.
Since 40 15 25, 25 more oranges are needed.
4A Unit 14 199
2. Have the students learn how to divide a
3-digit number by a multiple of 10.
Place the first digit.
Estimate to place the first digit in the
quotient.
What is the quotient of 360 50? About 7
What is the quotient of 370 50? About 7
In both estimates, the first digit is in the
ones place. So, place the first digit in the
ones place.
Divide the ones.
Multiply. 50 7 350
Subtract. 368 350 18
Compare. 18 50
Remainder 18
Check the answer.
7 50+18=350+18=368, it checks.
Have the students use the method shown
to find the quotient and remainder.
Problem:
If 495 oranges are divided equally among 40 people, some will remain. How many more oranges are
needed in order to have the oranges be divided equally with no remainder?
Answer:
495 40 12 r15. In order to have no remainder, some oranges must be added to 15 to make it 40.
Since 40 15 25, 25 more oranges are needed.
4A Unit 14 199
