Second Grade Review
Mai has 40 tens. How many hundreds is that?
400
What is the total in 7 groups of 3?
21
What is the product of 67 x 89?
5,963
A movie costs $3,254,107 to produce. What digit is in the hundred thousands place?
2
Use one or more exponents to write the expression:
7 x 7 x 7 x 7
74
Alex draws a hexagon and two pentagons. How many sides does Alex draw altogether?
16 sides
Maria buys 15 apples at the store and places them into bags. She puts 5 apples into each bag. How many nags does Maria use for all the apples?
3 bags
The computer lab at a high school ordered 26 packages of USB flash drives. There were 50 USBs in each package. How many USBs did the computer lab order?
1,300
What is the best estimate for the product of 289 and 7?
3,000
289 is about 300
7 is about 10300 x 10 = 3,000
Write these numbers in order from least to greatest:
3 3/10
3.1
3 1/4
3.1,
3 1/4
3 3/10
Len has 35 baseball cards. The rest of his cards are basketball cards. He has 58 cards in all. How many basketball cards does he have?
23 baseball cards
7 x ___ = 56
8
What is the least common multiple of 16 and 18?
2
What is the value of n?
(9 x 27) + (2 x 31) - 28 = n
hint- use PEMDAS
n = 277
Gavin bought 4 packages of cheese. Each package weighed 1.08 kilograms. How many kilograms of cheese did Gavin buy?
4.32 kilograms.
What number would make this equation true?
22 - ____ = 10 + 5
7
Round 149,751 to the nearest hundred.
149,800
What is the difference between prime numbers and composite numbers?
prime numbers have exactly 2 factors.
composite number have more than two factors.
To transport 228 people to an island, the island ferry makes 6 different trips. On each trip the ferry carries the same number of people. How many people does the ferry transport on each trip?
38 people
Find the prime factorization of 45.
3 x 3 x 5
Mr. Juarez has some money. He uses $2 to buy a notebook. Then he uses one $20 bill and two $5 bills to buy gas for his car. He has three $20 bills left. How much money did Mr. Juarez have at the start?
$92
Jesse is putting ribbon around a square frame. He uses 24 inches of ribbon. How long is each side of the frame?
6 inches
Round 79,389 to the nearest thousand.
79,000
What is the product of 523 x 267?
139,641
Juan is reading a 312-page book for school. He reads 12 pages each day. How long will it take him to finish the book?
26 days