Area Models
Which equation does this area model show? A rectangle that is 7in. tall and split into two parts, 10in and 8in wide
A) 7 x 18 = 126
B) 8 x 17 = 136
C) 10 x 15 = 150
D) 10 x 17 = 170
A) 7 x 18
What is 2 x 31?
62
Which uses expanded form and the Distributive Property to find 3 × 49?
A) (3 × 40) + (9)
B) (3 × 4) + (3 × 9)
C) (3 × 40) + (3 × 9)
D) (3 × 4) + (3 × 9 × 10)
C) (3 × 40) + (3 × 9)
An art teacher displays 6 rows of 21 paintings. How many pieces in all?
126 pieces
Area model for 2 x 57: the side is 2 and the top is split into 50 and 7. What products go in the two boxes?
100 and 14
What is 41 × 8?
A) 248
B) 328
C) 368
D) 408
B) 328
4 × 42 = ?
___ tens + ___ ones. Fill in the blanks, then give the product.
16 tens + 8 ones = 168
4 rows of chairs. Each row has 2 teacher chairs and 13 student chairs. How many chairs in all?
A) 8
B) 52
C) 60
D) 104
C) 60 chairs
A picture of base-ten blocks show 4 groups of 2 hundreds, 1 ten, and 1 one. What multiplication equation is shown?
What is the final answer?
4 x 211 = 844
What is 146 x 6?
A) 646
B) 776
C) 846
D) 876
D) 876
Use partial products to find 6 × 19. How many tens, ones, and what is the total?
6 Tens = 60
54 ones = 54
Total: 114
12 fourth graders are in row 1 and 9 in row 2. There are 3 times as many third graders in these rows. How many third graders?
63 third grade students
An area model shows 5 x 184. The numbers on the top are 100 + 80 + 4, what are the partial products?
500, 400, and 20
Multiply: 9 × 3,500
(Hint: 9 × 3,000 and 9 × 500)
31,500 (27,000 + 4,500)
Use the Distributive Property:
8 × 27 = (8 × 20) + (8 × 7). What is the product?
216 (160 + 56)
Paolo has 96 rocks and fills 6 aquariums with 12 rocks each. Which equation shows how many rocks, r, are left?
A) 96 − 12 × 2 = r
B) 96 − 12 × 6 = r
C) 96 − 12 − 6 = r
D) 96 − 12 − 2 × 6 = r
B) 96 − 12 × 6 = r
3 x 49 with 49 split into 40 + 9. What is the total area? Draw the area model and solve.
147 (120 + 27)
What is 6 × 2,408?
14,448
Use partial products to find 7 × 38. How many tens, ones, and what is the total?
21 tens = 210
56 ones = 56
Total = 266
Part B: How many rocks does Paolo have left?
24 rocks