Equal to Half
1/2 = ?/8
4/8
Which benchmark fraction is 1/5 closest to?
0 , 1/2 , or 1?
0
Estimate using benchmark fractions:
1/9 + 4/5
1
Estimate using benchmark fractions:
11/13 - 2/7
1
Estimate using benchmark fractions:
1 2/7 + 1/8
1
1/2 = ?/12
6/12
Which benchmark fraction is 3/7 closest to?
0 , 1/2 , or 1?
1/2
Estimate using benchmark fractions:
3/4 + 10/12
2
Estimate using benchmark fractions:
4/8 - 2/9
1/2
Estimate using benchmark fractions:
1 8/9 + 3/6
2 1/2
1/2 = ?/10
5/10
Which benchmark fraction is 9/10 closest to?
0 , 1/2 , or 1?
1
Estimate using benchmark fractions:
4/9 + 3/6
1
Estimate using benchmark fractions:
3/7 - 5/9
0
Estimate using benchmark fractions:
3 3/7 + 1 1/9
4 1/2
1/2 = 12/?
12/24
Which benchmark fraction is 3/8 closest to?
0 , 1/2 , or 1?
1/2
Estimate using benchmark fractions:
Ms. Petro and her sister are repainting the classroom. Ms. Petro painted 2/12 of the room and Ms. Petro’s sister painted 8/15 of the room. Estimate how much did Ms. Petro and her sister paint all together.
They painted about 1/2 of the room
Estimate using benchmark fractions:
2/18 - 1/10
0
Estimate using benchmark fractions:
4 2/12 - 2 1/10
2
1/2 = 10/?
10/20
Which benchmark fraction is 8/9 closest to?
0 , 1/2 , or 1?
1
Estimate using benchmark fractions:
Ms. Petro and her sister are repainting the classroom. Ms. Petro painted 1/5 of the room and Ms. Petro’s sister painted 2/7 of the room. Estimate how much did Ms. Petro and her sister paint all together.
They barely painted any of the room
Estimate using benchmark fractions:
8/9 - 4/7
Estimate using benchmark fractions:
3 5/11 - 1 4/9
2