Prime Factorization
65
5x13
14 x 4,000
56,000
Make and area model and solve 35x6
210
rewrite
35x2
2 x (30 +5)
45x69
3,105
150
2x3x5^2
507 x 10^5
50,700,000
area model for 345 x 8
2760
rewrite
7x367
7 x ( 300+60+7)
A rocket moves 357 feet per second. How far will it move after 22 seconds
7,854
* Daily Double
333
3^2 x 37
350 x 10^__ = 350,000,000
10^6
area model of 245x 12
2,940
*Daily Double
What is the distributive property?
a property that lets you multiply a sum by a number and add to get the answer (answers vary)
What is a compatible number?
a number that is easy to multiply mentally
468
2^2 x 3^2 x 13
____x 300= 45,000
150
626 x 23
14,398
rewrite and solve
show your work
426 x 3
3 x ( 400+ 20 + 6)
(3x400) + ( 3x20) + (3x6)
1,200 + 60+ 18
1,278
*Daily double
Jim is makings cookies for a bake sale he wants to he wants to sell at least 150 cookies in the 5 days the bake sale will run. On day 1 he sells 3 cookies. Every day he sells twice the amount of cookies as the day before. How many days will it take him to sell at least 150 cookies? Did he reach his goal?
6 days , no he needed an extra day
2688
2^7 x 3 x 7
16 x 4200=
62,700
230x 107
24,610
rewrite in standard form and solve
(3x300) + (3x50) + (3x8)
3x 358
1,074
345x 678
233,910