Decimal Multiplication Patterns
1 x 2.21 = _____
10 x 2.21 = _____
100 x 2.21 = _____
What is
2.21
22.1
221
Find the product. Draw a quick picture.
2 x 0.30 = _____
What is 0.60?
2 groups of 30 shaded boxes.
Find the product of 6.33 x 4 = _____.
What is 25.32?
Write 2.6 in expanded form and use it to solve 2.6 × 3.
What is (2 + 0.6) × 3 = 6 + 1.8 = 7.8?
Two friends go to a local farmers’ market. Bill spends $8.25. Matt spends 2 times as much as Ashlee. How much money does Matt spend?
What is $16.50?
29 x 1 = _____
29 x 0.1 = _____
29 x 0.01 = _____
What is
29
2.9
0.29
Find the product. Draw a quick picture.
0.04 x 6 = _____
What is 0.24?
6 groups of 4 shaded boxes.
Find the product of 2 x 1.52?
What is 3.04?
Use expanded form to solve 3.4 × 5. Show the partial products.
What is (3 + 0.4) × 5 = 15 + 2 = 17?
A movie theater charges $4.75 for a small popcorn and 3 times as much for a large popcorn. How much would it cost to buy one small popcorn and one large popcorn?
What is $19.00?
$4.75 × 3 = $14.25
$14.25 + $4.75 = $19.00
39.2 x 1 = _____
39.2 x 10 = _____
39.2 x 100 = _____
39.2 x 1000 = _____
What is
39.2
392
3,920
39,200
In physical education class, Sonia walks a distance of 0.12 mile in 1 minute. At that rate, how far can she walk in 6 minutes?
What is 0.72 mile?
A baker is making cupcakes for a school event. Each batch requires 2.45 pounds of flour. If the baker makes 6 batches, how many pounds of flour will be needed?
What is 14.7 pounds?
Draw an area model to find the product 54 x 0.35 = _____?
What is 18.9?
50 + 4
0.30 + 0.05
50 x 0.3 = 15
4 x 0.3 = 1.2
50 x 0.05 = 2.5
4 x 0.05 = 0.2
15 + 1.2 + 2.5 + 0.2 = 18.9
Lucas, Ava, and Max went to a school book fair. Lucas spent $12.40. Ava spent 2 times as much as Lucas. Max spent $5.65 more than Ava. How much money did all three students spend altogether?
What is $67.65?
Lucas: $12.40
Ava: $12.40 × 2 = $24.80
Max: $24.80 + $5.65 = $30.45
Say whether or not each product is correct. Write yes or no. If no, give the correct product.
1) 0.01 x 33.2 = 0.332
2) 10 x 45.9 = 4.59
3) 85.1 x 1/10 = 851
What is
1. Yes
2. No. 45.9
3. No. 8.51
Alex is shading a 10-by-10 grid to show 0.06 × 5. How should Alex shade the model?
Alex should shade ____ groups of ____ small squares for a total of ____ small squares.
Alex should shade 5 groups of 6 small squares for a total of 30 small squares.
A swimming pool is 12.5 meters long. A swimmer completes 8 laps of the pool. How many meters does the swimmer swim altogether?
What is 100 meters?
Break 4.25 into expanded form and then find the product of 4.25 × 4.
What is (4 + 0.2 + 0.05) × 4 = 16 + 0.8 + 0.2 = 17?
A pet store sells a bag of dog treats for $3.85. A large bag of dog food costs 8 times as much as a bag of treats. If a customer buys 2 bags of treats and one large bag of dog food, how much will the customer spend altogether?
What is $38.50?
Large Bag of Dog food: $3.85 × 8 = $30.80
Dog Treats: $3.85 × 2 = $7.70
Total: $30.80 + $7.70 = $38.50
The length of the British steamship Titanic was 982 feet. Porter’s history class is building a model of the Titanic. The model is 1/100 of the actual length of the ship. How long is the model?
What is 9.82 feet?
A certain type of granola contains 0.7 gram of fiber per serving. How much fiber is in 6 servings of the granola?
What is 4.2 grams of fiber?
A construction worker is building a fence. Each section of the fence requires 4.66 feet of wood. If the worker builds 12 sections, how many feet of wood will be needed altogether?
What is 55.92 feet of wood?
Break 6.38 into expanded form and then find the product of 6.38 × 7.
What is (6 + 0.3 + 0.08) × 7 = 42 + 2.1 + 0.56 = 44.66?
In August, Mia has $42.65 in her savings account. In September her balance doubles, and then she deposits an additional $56.75. How much money does Mia have in her account now?
What is $142.05?
$42.65 × 2 = $85.30
$85.30 + $56.75 = $142.05