1.4 Multiply whole numbers

$4\times 7$

$8\times 6$

$5·12$

$3·9$

$(10)(25)$

$(20)(15)$

$42(33)$

$39(64)$

$3\times 6$

$4\times 5$

$5\times 9$

$3\times 9$

$0·15$

$0·41$

$(99)0$

$(77)0$

$1·43$

$1·34$

$(28)1$

$(65)1$

$1(\mathrm{240,055})$

$1(\mathrm{189,206})$

1. ⓐ $7·6$
2. ⓑ $6·7$

1. ⓐ $8\times 9$
2. ⓑ $9\times 8$

$(79)(5)$

$(58)(4)$

$275·6$

$638·5$

$\mathrm{3,421}\times 7$

$\mathrm{9,143}\times 3$

$52(38)$

$37(45)$

$96·73$

$89·56$

$27\times 85$

$53\times 98$

$23·10$

$19·10$

$(100)(36)$

$(100)(25)$

$\mathrm{1,000}(88)$

$\mathrm{1,000}(46)$

$50\times \mathrm{1,000,000}$

$30\times \mathrm{1,000,000}$

$247\times 139$

$156\times 328$

$586(721)$

$472(855)$

$915·879$

$968·926$

$(104)(256)$

$(103)(497)$

$348(705)$

$485(602)$

$\mathrm{2,719}\times 543$

$\mathrm{3,581}\times 724$

the product of $18$ and $33$

the product of $15$ and $22$

fifty-one times sixty-seven

forty-eight times seventy-one

twice $249$

twice $589$

ten times two hundred fifty-five

$38\times 37$

$86\times 29$

$415-267$

$341-285$

$\mathrm{6,251}+\mathrm{4,749}$

$\mathrm{3,816}+\mathrm{8,184}$

$(56)(204)$

$(77)(801)$

$947·0$

$947+0$

$\mathrm{15,382}+1$

$\mathrm{15,382}·1$

the difference of 50 and 18

the difference of 90 and 66

twice 35

twice 140

20 more than 980

65 more than 325

the product of 12 and 875

the product of 15 and 905

subtract 74 from 89

subtract 45 from 99

the sum of 3,075 and 95

the sum of 6,308 and 724

366 less than 814

388 less than 925

Party supplies Tim brought 9 six-packs of soda to a club party. How many cans of soda did Tim bring?

Sewing Kanisha is making a quilt. She bought 6 cards of buttons. Each card had four buttons on it. How many buttons did Kanisha buy?

Field trip Seven school busses let off their students in front of a museum in Washington, DC. Each school bus had 44 students. How many students were there?

Gardening Kathryn bought 8 flats of impatiens for her flower bed. Each flat has 24 flowers. How many flowers did Kathryn buy?

Charity Rey donated 15 twelve-packs of t-shirts to a homeless shelter. How many t-shirts did he donate?

School There are 28 classrooms at Anna C. Scott elementary school. Each classroom has 26 student desks. What is the total number of student desks?

Recipe Stephanie is making punch for a party. The recipe calls for twice as much fruit juice as club soda. If she uses 10 cups of club soda, how much fruit juice should she use?

Gardening Hiroko is putting in a vegetable garden. He wants to have twice as many lettuce plants as tomato plants. If he buys 12 tomato plants, how many lettuce plants should he get?

Government The United States Senate has twice as many senators as there are states in the United States. There are 50 states. How many senators are there in the United States Senate?

Recipe Andrea is making potato salad for a buffet luncheon. The recipe says the number of servings of potato salad will be twice the number of pounds of potatoes. If she buys 30 pounds of potatoes, how many servings of potato salad will there be?

Painting Jane is painting one wall of her living room. The wall is rectangular, 13 feet wide by 9 feet high. What is the area of the wall?

Home décor Shawnte bought a rug for the hall of her apartment. The rug is 3 feet wide by 18 feet long. What is the area of the rug?

Room size The meeting room in a senior center is rectangular, with length 42 feet and width 34 feet. What is the area of the meeting room?

Gardening June has a vegetable garden in her yard. The garden is rectangular, with length 23 feet and width 28 feet. What is the area of the garden?

NCAA basketball According to NCAA regulations, the dimensions of a rectangular basketball court must be 94 feet by 50 feet. What is the area of the basketball court?

NCAA football According to NCAA regulations, the dimensions of a rectangular football field must be 360 feet by 160 feet. What is the area of the football field?

Stock market Javier owns 300 shares of stock in one company. On Tuesday, the stock price rose $\text{\$}12$ per share. How much money did Javier’s portfolio gain?

Salary Carlton got a $\text{\$}200$ raise in each paycheck. He gets paid 24 times a year. How much higher is his new annual salary?

How confident do you feel about your knowledge of the multiplication facts? If you are not fully confident, what will you do to improve your skills?

How have you used models to help you learn the multiplication facts?