Multiply
Find the product of 37 x 46.
37 x 46 = 1,702
Estimate the product of 49 and 19.
50 x 20 = 1,000
Carter is painting two sections of a wall. The first section is 27 feet by 14 feet. The other section is 19 feet by 23 feet. What is the total area of the sections?
(27 x 14) + (19 x 23) =
378 + 437 = 815 square feet
Beth is following a recipe that calls for 2 1/4 cups of flour. She decides to triple the recipe. How much flour does Beth need?
2 1/4 x 3 or 2 1/4 + 2 1/4 + 2 1/4 =
6 3/4 cups
5/10 + 33/100 =
50/100 + 33/100 = 83/100
Find the product of 38 and 56.
38 x 56 = 2,128
Estimate the product.
654 x 39
700 x 40 = 28,000
or 650 x 40 = 26,000
Aaditya is organzing 48 packs of water onto a truck. Each pack contains 24 bottles of water. How many bottles has Aaditya organized?
48 x 24 = 1,152 bottles
Lola ran a 5 kilometer race in March, a 10 kilometer race in April, and two 5 kilometers races in May. How many meters did she run in all?
5 + 10 + (2 x 5) = 25 km
25 km = 25,000 m
0.9 + 4/100 =
9/10 + 4/100 = 90/100 + 4/100 = 94/100
or 0.9 + 0.04 = 0.94
Find 642 x 23.
Estimate the product of 872 and 28.
900 x 30 = 27,000
Patrick is a long jumper. During practice, he jumped distances of 6.8 m, 4.5 m, 7.2 m, and 6.3 m. How many total cm did Patrick jump?
680 + 450 + 720 + 630 = 2,480 cm
Shelby used 49 Legos in her first design. In her second design, she used 84 times as many Legos. How many Legos did she use in both designs?
49 + (49 x 84) =
49 + 4,116 =
4,165 Legos
0.75 + 25/100 =
0.75 + 0.25 = 1.00
or 75/100 + 25/100 = 100/100 = 1
Solve for p.
49 x 32 = p
49 x 32 = p
1,568 = p
Estimate the product of (56 x 72) x 12
(60 x 70) x 10 = (4,200 x 10) = 42,000
Mia has 3/8 of a yard of ribbon. Max has 1/3 of a yard of ribbon. Who has a longer piece of ribbon?
3/8 = 9/24 and 1/3 = 8/24 so Mia's piece is longer
Shawn poured 2,000 mL of lemonade and 3 L of punch into the punch bowl for the party. How many liters are in the punch bowl?
2,000 mL = 2 L
2L + 3 L = 5 L
7/100 + 8/10 =
7/100 + 80/100 = 87/100
Solve 99 x 63.
Hint: Try the OVER STRATEGY!
99 x 63 =(100 x 63) - (1 x 63) = 6,300 - 63 = 6,237
Find the product of 362 x 25.
400 x 30 = 12,000 or 400 x 25 = 10,000
(23 + 46 + 31) x 12 = b
100 x 12 = b
1,200 books = b
A rectangle has an area of 4,512 square inches. The width of the rectangle is 3 inches. What is the length of the rectangle?
4,512 divided by 3 = 1,504 in.
0.15 + 3/100 =
15/100 + 3/100 = 18/100 or
0.15 + 0.03 = 0.18