Fluently Add, Subtract, and Multiply Decimals
What is 3.45 + 6.78?
10.23
1,722 ÷ 13
132 R6
Find the product: 4/7 × 2/3
8/21
3 ÷ 1/2
6
1 1/2 ÷ 2/3
9/4 = 2 1/4
12.5 – 7.36
5.14
66.15 ÷ 5
13.23
Multiply: 3/4 × 1/8.
3/32
If you have 4 pizzas and share them equally among 1/2 of your friends, how many pizzas does each friend get?
8 pizzas
3 1/4 ÷ 6/7
91/24 = 3 19/24
4.2 × 0.6
2.52
188.4 ÷ 60
3.14
Multiply: 8/9 × 9/10.
72/90 = 4/5
2 ÷ 1/3
6
4 1/2 ÷ 1 5/8
1 7/9
2.75 + 0.89
3.64
A ribbon is 9.75 m long and is cut into 98 equal pieces. How long is each piece?
99.5
1 1/5 × 5/6
1
Why do we multiply by the reciprocal when dividing fractions?
because dividing by a fraction means finding how many of that fraction fit in the whole.
2 2/3 ÷ 1 1/2
16/9 = 1 7/9
3.25 – 1.78
1.47 m remain
A car travels 78.32 km in 2 hours. How many kilometers per hour is that?
39.16 km/h
Estimate and then find: 3 2/3 × 2 3/4
121/12 = 10 1/12
If a recipe uses 3/4 cup of sugar per serving, how many servings can you make with 3 cups?
4 servings
A cake recipe makes 1 3/4 cakes from 2 1/3 cups of flour. How many cakes per cup of flour?
3/4 cakes per cup