Decimal Operations
Calculate 3.45 +2.7
6.15
2/5 x 3/5
2/5
A ribbon is 4.5 meters long. You use 1.8 meters. How much is left and what operation did you use?
2.7 meters and subtraction
Which number is greater: −3 or 2?
2
Find the greatest common factor (GCF) of 8 and 12.
4
Calculate: 8.2 − 3.76
4.44
4/7 ÷ 2/3
6/7
Each notebook costs $2.35. What is the cost of 4 notebooks and what operation did you use?
$9.40 and multiplication
Order these numbers from least to greatest: 4, −6, 0, −2, 3
−6, −2, 0, 3, 4
Find the least common multiple (LCM) of 4 and 6.
12
Calculate: 2.4 × 1.5
3.6
1 1/2 + 2 2/3
4 1/6
Mia walks 1.25 miles in the morning and 2.3 miles in the afternoon. How far does she walk altogether and what operation did you use?
3.55 miles and addition
What is the absolute value of −9?
9
Find the GCF of 18 and 30.
6
7.56 ÷ 1.2
6.3
5 1/6 + 2 3/4
7 11/12
A recipe uses 3/4 cup of milk per batch. How much milk is needed for 4 batches and what operation did you use?
3 cups and multiplication
Which number is farther left on a number line: −7 or −4?
-7
Find the LCM of 8 and 12.
24
0.084 ÷ 0.4
0.21
3/4 × 2/5 ÷ 1/2
3/5
A rope is 8.55 meters long. It is cut into 3 equal pieces. How long is each piece and what operation did you use?
2.85 meters and division
A point is 6 units from zero on a number line. What are the two possible integer locations?
-6 and 6
Two ribbons are 36 inches and 48 inches long. What is the greatest possible equal length of pieces you can cut from both ribbons without any leftover?
12 inches (GCF of 36 and 48)