Addition and Subtraction
51,472 + 7,078
58,550
4 x 8
4 x 80
4 x 800
32
320
3,200
965 / 5
193
The soccer club has 127 members. The baseball club has 97 members. Both clubs will meet to discuss practice times for the fields. The members will be seated at tables of 8 members each. How many tables will they use?
(127 + 97) / 8 = t
t = 28 tables
Is 98 prime or composite?
Composite. 2 x 49
1,824 + 136,739
138,563
5 x 28
140
672 / 7
96
Mr. Johnson buys a set of 224 baseball cards. He gives Mrs. Johnson 44. Then he places the remaining cards into an album with 5 cards on each page. How many pages does he fill in his album?
(224-44) / 5 = p
p = 36 pages
What does prime mean?
Divisible by only itself and 1.
71,824 - 36,739
35,085
6 x 458
2,748
927 / 5
185 R2
The movie theater at the Alderwood mall has 13 screens. On the weekends, each screen shows a movie 7 times in one day. On weekdays, each screen shows a movie 5 times in one day. How many more showings are there on Saturdays than on Tuesdays?
(7x13) - (5x13) = s
s = 26 more showings
Is 84 a multiple of 7?
Yes. 7 x 12 = 84
372,608 - 57,425
315,183
34 x 52
1,768
6,243 / 3
2,081
Mrs. Johnson has 24 shoes arranged in equal rows of 6 shows each. Mr. Johnson has 18 shoes arranged in qual rows of 3 shoes. How many rows of shoes do they have in all?
(24 / 6) + (18 / 3) = r
r = 10 rows
List all factor pairs for 12.
1 x 2
2 x 6
3 x 4
614,702 - 539,508
75,194
24 x 91
2,184
9,915 / 6
1,652 R3
A bakery had 2 trays of 28 muffins on each tray. The bakery had 4 trays of cupcakes with 12 cupcakes on each tray. On Monday, the bakery sold 6 cupcakes. How many more muffins does the bakery have than cupcakes now?
(2 x 28) - (4 x 12 - 6) = m
56 - 42 = 14 muffins
List all factor pairs for 28.
1 x 28
2 x 14
4 x 7