Use basic facts and multiplication properties to multiply by 10 and 100.
3x10=
30
707x4=
2,800
7x45=
7(40+5)=
(7x40)+(7x5)
(7x40)=280
(7x5)=35
315
75x5=
375
589x9=
5301
80x8=
640
6x8,166=
48,000
88x3=
3(80+8)=
(3x80)+(3x8)=
(3x80)=240
(3x8)=24
264
214x7=
1,498
Use the Desmares way to find the product.
3245x8=
25,960
700x6=
4,200
5,703x3=
18,000
736x5=
5(700+30+6)=
(5x700)=3500
(5x30)=150
(5x6)=30
3,815
1,341x7=
9,387
Select 3 partial products for 4x756=
1.) 24
2.)200
3.)25
4.) 24
5.)2,800
2,800, 200, 24
8x7,000=
56,000
9,379x5=
45,000
7,800x5=
5(7000+5)=
(5x7000)=35,000
(5x5)=25
39,000
33x6=
198
Miss Digricoli makes 6 copies of a 350 page packet. How many pages were copied? Draw a bar diagram.
2,100
9,000x6=
54,000
9x1,993=
18,000
8,756x2=
2(8000+700+50+6)=
(2x8,000)=16,000
(2x700)=1,400
(2x50)=100
(2x6)=12
17,512
1250x8=
10,000
Each crate holds 65 water bottles. Miss Digricoli has 5 packages. How many water bottles does Miss Digricoli have? Write an equation with a variable.
65x5=w
325 markers