GCF
Find the GCF of 18 and 40
2
Find the LCM of 2 and 5
10
Give one factor pair for 30.
Any of these:
1 x 30
2 x 15
3 x 10
5 x 6
True or False.
In the number 2200, the two in the thousands place is 10 times larger than the two in the hundreds place.
True.
Is this expression rewritten using the distributive property. True or False
4(25)
(4 + 20) x (4 + 5)
False.
Should be (4 x 20) + (4 x 5)
Find the GCF of 8 and 13.
The GCF is 1.
1 is also called a coprime.
Find the LCM of 4 and 6
12
Find the Prime Factorization of 49
7 x 7
Jake divides 75 in equal groups of 6.
How much is left over?
75 / 6=12 R3
It goes in 12 times and has 3 left over.
6 x 12 = 72
72+3 =75
divisor x quotient + remainder = dividend
Rewrite this expression using the distributive property.
8(42)
8 x 40 + 8 x 2
Find the GCF of 32 and 52
4
Find the LCM of 12 and 5
60
Find the Prime Factorization of 75
3 x 5 x 5
96 / 7 = 13 R 5
How much would the dividend (96) need to be increased by so that isn't any left over?
It would need to be increased by 2.
98/7= 14
There were 5 left over. If we increased the dividend by 2, then 7 could have been divided into 98 one more time, without a remainder.
Rewrite this problem using the distributive property.
(hint: there is more than 1 way)
16 + 20
4 (4 + 5)
2 (8 + 10)
3806/22
173
Rewrite this addition expression using the GCF and the distributive property.
25 + 15
The GCF is 5.
5(5 + 3)