Add & Subtract w/ Mixed Numbers
1 3/10 + 2 2/5
3 7/10
4 1/2 -3 4/5
7/10
What's the rule?
1/4, 1/2, 3/4, ___
add 1/4
What property is this ?
1/3 + (1/3 + 1/6)= (1/3 + 1/3) + 1/6
Associative Property
The Diaz family is cross-country skiing the Big Tree trails, which have a total length of 4 miles. Yesterday, they skied the 7/10 mile Oak Trail. Today, they skied the 3/5 mile Pine Trail. If they plan to ski all the Big Tree trails, how many more miles do they have left to ski?
2 7/10
8 1/6 + 7 3/8
15 13/24
9 1/6- 2 3/4
6 5/12
1/9, 1/3, 5/9, _______
add 2/9
What property is this?
1/3 + ( 1/3 + 1/6) = 1/3 + (1/6 + 1/3)
Commutative Property
Solve
6 = 2 5/6 + 1 1/3 + x
1 5/6
2 5/8 - 1 1/4
1 3/8
6- 3 1/2
2 1/2
Find the missing term in the sequence.
3/10, 2/5, _____ 3/5
5/10 or 1/2
Solve using properties.
1/3 + (1/3 + 1/6)= (1/3 + 1/3) + 1/6
5/6
Ben has 5 3/4 cups of sugar. He uses 2/3 cup of sugar to make cookies. Then he uses 2 1/2 cups of sugar to make fresh lemonade. How many cups of sugar does Ben have left?
2 7/10
1 5/12 + 4 1/6
4 7/12
4 3/8 - 3 1/2
7/8
Find the Missing term of the sequence.
10 2/3, 9 11/18, ____, 7 9/18
8 5/9
Solve using properties.
5 1/4 + (3/4 + 1 5/12)
7 5/12
Caitlin has 4 3/4 pounds of clay. She uses 1 1/10 pounds to make a cup, and another 2 pounds to make a jar. How many pounds are left?
Write the equation only.
4 3/4 = 1 1/10 + 2 + x
14 7/12 - 5 1/4
9 1/3
12 2/5 - 5 3/4
6 13/20
Rule: Start at 8/9, subtract 1/18
____, _____, ____
8/9, 5/6, 7/9
Solve using properties
(1/5 + 3/10) + 2/5
9/10
Caitlin has 4 3_ 4 pounds of clay. She uses 1 __1 10 pounds to make a cup, and another 2 pounds to make a jar. How many pounds are left?
1 13/20