Mental Math/Estimation
Multplying by 1-Digit
Multiplying 2 x 2
Multiplying 2 x 3
Operations/Missing or Extra Information

### 100

In our school library, there are 40 bookshelves. Each bookshelf holds 300 books. How many total books are in the library? A. 12 B. 120 C. 1,200 D. 12,000
What is D. 12,000?

809 x 5 =
What is 4,045?

48 x 91 =
What is 4,368?

426 x 91 =
What is 38,766?

### 100

Jennie has 2 cats, both of which just had kittens. Zippy has twice as many kittens as Fuzzy. Jennie's friends adopt 5 of the kittens. What do you need to know to find out how many of the kittens Jennie keeps? A. The total number of kittens B. How old the kittens are now C. How many friends Jennie has D. The date when the kittens are born
What is A. The total number of kittens?

### 200

Which two numbers have an estimated product of about 800? A. 46 x 18 B. 42 x 38 C. 22 x 51 D. 39 x 17
What is D. 39 x 17?

### 200

186 x 9 = A. 1,674 B. 1,684 C. 1,774 D. 2,674
What is A. 1,674?

### 200

89 x 57 = A. 5,083 B. 6,073 C. 5,073 D. 5,084
What is C. 5,073?

### 200

965 x 24 = A. 23,152 B. 23,960 C. 24,160 D. 23,160
What is D. 23,160?

What is $27,750? ### 500 The sports field at Randolph Elementary School is shaped like a rectangle. The field is 72 yards long and 46 yards wide. What is the area of the field in square yards? What is 3,312 square yards? ### 500 Alyssa made 138 bags of cookies for the fifth grade. She put 28 cookies in each bag. What is the total number of cookies Alyssa used to make the baskets? A. 3,365 B. 3,964 C. 4,864 D. Not Here What is D. Not Here? ### 500 Zoe buys 16 Snickers bars each month. They cost$2.00 a piece. Which equation can be used to find s, the number of Snickers bars in 12 months? A. s = 16 - 12 B. s = 16 x 12 C. s = 16/19 D. s = 16 x 12 x 2
What is B. s = 16 x 12?