Prime Factorization/Exponents
Find the prime factors: 36
36: 2 x 2 x 3 x 3
75 x 1 =
75 x 10 =
75 x 100 =
75 x 1,000 =
75 x 10,000 =
75
750
7,500
75,000
750,000
Multiply using the ALGORITHM method.
54 x 35 =
1,890
Estimate 18 x 58
About 1,200
Write each product using an exponent: 3 x 3 x 3 x 3
34
300 x 7 =
2,100
Multiply using the MULTIPLICATION ARRAY method.
22 x 75 =
1,650
Estimate 34 x 11
About 300
Find product mentally: 73 x 102
7,300
500 x 70 =
35,000
Multiply using the LIST method.
45 x 64 =
2,880
Estimate 42 x 59
About 2,400
Find the product: 62
6 x 6 = 36
In the auditorium, there are 100 rows 24 seats in each row. How many seats are available?
2,400 seats
Tricia is building a rectangular patio. The patio will be 32 bricks wide and 19 bricks long. She has 600 bricks.
How many bricks will be in the patio?
Does she have enough bricks to build the patio?
608 bricks
No, she needs 8 more
Estimate 85 x 73
About 6,300
Find the prime factors: 42
42: 2 x 3 x 7
700 x 40 = ?
28,000
A garden store sells plants in flats. There are 6 plants in each tray. Each flat has 6 trays. The garden store sold 9 flats on Saturday and 12 flats on Sunday. How many plants did the garden store sell in all?
756 plants
About 36,000