Corelise has 3 wooden bookcases that contain all of her books. The first bookcase has 3 shelves with 22 books on each shelf. The second bookcase has 4 shelves with 18 books on each shelf. The third bookcase has 5 shelves with 17 books on each shelf.

Question

Part A
Write an expression for how many books she has.

A.
(
3
×
22
)
+
(
4
×
18
)
+
(
5
×
17
)
B.
(
3
+
22
)
×
(
4
+
18
)
×
(
5
+
17
)
C.
(
3
+
22
)
+
(
4
+
18
)
+
(
5
+
17
)
D.
(
3
×
22
)
+
(
4
+
18
)
+
(
5
×
17
)
Part B
Stephan has 230 books. Does Corelise have more than Stephan?

Choose...
, she has
Choose...

Choose...
than Stephan.

6 / 7
5 of 7 Answered

Answer 1

Part A: A. (3 x 22) + (4 x 18) + (5 x 17) = 66 + 72 + 85 = 223 books.
Part B: Since Corelise has 223 books, which is less than Stephan's 230 books, the answer is "No, she has fewer books than Stephan."

Answer 2

Annmarie has red, black, and green pens. She has 5 red pens and 7 black pens. She has 3 times as many green pens as red pens.

Part A
Drag the tiles to write an expression for the total number of pens she has. Tiles may be used once, more than once, or not at all.

+×57
5



+
3



Part B
How many pens does she have in all?

A.
20 pens

B.
27 pens

C.
51 pens

D.
75 pens

Answer 3

Part A: (5+7) + (3x5) = 12 + 15 = 27
Part B: Annmarie has 27 pens in all, so the answer is B. 27 pens.