Mental Math
Estimating
Estimating 2
Division
Division 2
100
6,300 ÷ 90 =
70
100
228 ÷ 19 =
10 or 11
100
Use estimation to find the quotient. 114 ÷ 30 =
3 r 24
100
48 ÷ 23 =
2 r 2
100
The answer to a division problem is called the ________.
quotient
200
2,000 ÷ 20 =
100
200
7,620 ÷ 53 =
150
200
Find the quotient using estimation. 936 ÷ 40 =
23 r 16
200
254 ÷ 29 =
8 r 22
200
The number of groups we are breaking the dividend up into is called the _____________________________.
divisor
300
81,000 ÷ 90 =
900
300
1,710 ÷ 32 =
60
300
Find the quotient using estimation. 201 ÷ 10 =
20 r 1
300
87 ÷ 11 =
7 r 10
300
180 ÷ 40 =
4 r 20
400
630 ÷ 3 =
210
400
4,322 ÷ 81 =
50
400
What do we call numbers that make "basic facts"?
compatible numbers
400
528 ÷ 56 =
9 r 24
400
638 ÷ 18 =
35 r 8
500
77,000 ÷ 110 =
700
500
724 ÷ 60 =
10 , 11 , 12, or 13
500
True or False : You can round 256 to 240 when dividing by 4.
True: 240 ÷ 4 = 60, your answer will be around 60.
500
98 ÷ 12 =
8 r 2
500
717 ÷ 31 =
23 r 4
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