Multiplication
437 x 4
1748
List the Factors from L to Greatest and tell if it is composite or prime:
11
1, 11 Prime
List the first 9 nonzero multiples of the number
2
2, 4, 6, 8, 10, 12, 14, 16, 18
94 X 6
6 x (90+4)
(6 x 90)+(6 x 4)
540+ 24 = 564
Estimate the product
54 x 8
50 x 8 = 400
50 x 30
1,500
36 x 87
3132
List the Factors from L to Greatest and tell if it is composite or prime:
31
1, 31 Prime
List the first 9 nonzero multiples of the number
3
3, 6, 9, 12, 15, 18, 21, 24, 27
12 X 43
12 X (40+3)
(12x40) +(12x3)
480 + 36 = 516
Estimate.
96 x 70
100 x 70 = 7,000
60 x 4
240
902 X 21
18,942
List the Factors from L to Greatest and tell if it is composite or prime
24
1, 2, 3, 4, 6, 8, 12, 24 Composite
List the first 9 nonzero multiples of the number
6
6, 12, 18, 24, 30, 36, 42, 48, 54
25 X 32
25 (30+2)
(25 x 30) + (25 x 2)
750 + 50 = 800
47 x 67
50 x 70 = 3,500
800 x 50
40,000
820 X 289
236,980
List the Factors from L to Greatest and tell if it is composite or prime
36
1, 2, 3, 4, 6, 9, 12, 18, 36 Composite
List the first 9 nonzero multiples of the number
7
7, 14, 21, 28, 35, 42, 49, 56, 63, 70
84 X 19
84 x (10+9)
(84x10) + (84x 9)
840 + 756
1596
Estimate
$6.85 x 61
$7.00 x 60
$420.00
Mrs. Smith's class of 26 students all bought lunches for $3.95. Eight parents bought lunches also for $4.25. How much money was spent on lunches overall?
$136.70
564 X 788
444,432
List the Factors from L to Greatest and tell if it is composite or prime
100
1, 2, 4, 5, 10, 20, 25, 50, 100 Composite
List the first 9 nonzero multiples of the number
8
8, 16, 24, 32, 40, 48, 56, 64, 72
93 X 42
(93x40) + (93x 2)
3720 +186
3906
estimate 982 x 991
1,000 x 1,000 = 1,000,000
The church had 3,487 people in the church service this week. How many people will they expect in a 6-week period?
20,922 people