Divisors: Multiples of Te n
12-2
3
40 1 3 7
3
40 1 3 7
1 2 0
3 R 17
40 1 3 7
1 2 0
1 7
4 0
3
1 2 0
1 7
1 3 7
Each student gets 3 marbles.
There are 17 marbles left over.
Forty students share 137 marbles
equally. How many marbles does
each student get? How many
marbles are left over?
To find how many each gets,
divide: 137 40.
137 40
Think: 13 4 is close to 12 4 3.
Tr y 3.
?
17 40
Think
40 1 3 7 40 1 Not enough hundreds
40 1 3 7 40 13 Not enough tens
40 1 3 7 40 137 Enough ones
Estimate to place the
first digit in the quotient.
Divide the
ones.
Subtract and
compare.
Multiply. Check.
Complete each division.
4 R 5 R ? R ? R 35
- 20 8 5 2. 50 2 5 8 3. 20 1 6 6 4. 80 6 7 5
?? ??? ??? ???
?? ? ? ??
???
3.4
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