Numbers & Place Values
What place value is 2 in?
43,243
Hundreds Place
7 x 8
56
8
Round 342 to the nearest tens
340
What are the first multiples of 2
2,4,6,8,10
four hundred forty three
6 x 13
78
78 divided by 6
13
Use front-end estimation to find the sum of 543 + 749.
500 + 700 = 1,200
What is the least common multiple of 3 and 8
24
What is 140,329 in expanded form?
100,000 + 40,000 + 300 + 20 + 9
23 x 5
115
93 divided by 4
use front-end estimation to find the difference of
5,635 - 3,535.
6,000 - 4,000 = 2,000
12
53,989
432 x 6
2,592
643 divided by 5
128 remainder 3
Find the difference, then use front-end estimation to check that your answer is reasonable:
4,324 - 3,321
4,324 - 3,321 = 1,003
4,000 - 3,000 = 1,000
The answer is reasonable because 1,003 is close to 1,000.
Is 3 a factor of 234? Explain why
Yes. The quotient is 78.
Complete the number pattern and identify the trend
12,322 , 13,432, ______ , 15, 652
14, 542, the trend is + 1,110
143 x 42
6,006
8,214 divided by 4
2,053 remainder 2
Use front-end estimation to check the reasonableness of products:
386 x 2
386 x 2 = 772
386 --> 400
400 x 2 = 800
The answer is reasonable because 772 is close to 800.
Find all the factors of 28 and explain whether it's a prime or composite number
1, 2, 4, 7, 14, 28
28 is a composite number because it has more than 2 factors.