MATH FACTS
Without using your table. What is 7x3=?
21
Ed is selling cookies. He sold 4 boxes of cookies for $9 each. How much did he make altogether? Write the equation and solve.
$36. 9x4= 36.
Mary buys 4 books that cost $4 and one book that costs $8. How much did Mary spend on books?
$24.
4 x4= $16
16+8= total amount Mary spent on books
=$24
Without using your fact table. What is 8x4=?
32.
Julia has 32 buttons. She is going to sew the same amount of buttons onto 8 shirts. How many buttons will she sew on each shirt?
4 buttons. 32/ 8=4
Concert tickets for adults cost $12. Concert tickets for students cost $9. Marie has $190. She wants to buy 1 adult ticket and 20 student tickets.
Skip says, "$190 is enough for all tickets because $9x20= $180, and $180 is less than $190."
Does Skip's reasoning make sense? Explain.
No, Marie will not have enough.
$9 x20= $180 for student tickets
$180+ $12 adult ticket= $192.
$192> $190 therefore she does not have enough. Skip was correct will solving for the total amount for student tickets but he forgot to add the 1 adult ticket.
Without using your math tables. What is 12x5=
60
Draw bar diagrams and write equations to solve the problem.
A rancher has 24 cows He puts an equal number of cows in 4 fields. Each cow produces 5 gallons of milk. How much milk do the cows in one field produce?
30 gallons of milk.
24 cows /4 fields= 6 cows per field
6 cows x 5 gallons= 30 gallons of milk.
Draw bar diagram and write equations to solve the problem.
Mr. Sato has $800. He spends $600 on rent. Then spends $85 on groceries. How much money does he have left.
Draw Bar Diagram on board.
$115 left.
600+85= 685.
800-685= 115
120
Miguel's and Nita's goal is to collect 600 box tops. Miguel collects 253 box tops in January and 158 box tops in February. Nita collects 209 box tops in all.
Teri estimates they have already collected more than their goal. She estimates that 250 + 150 = 400 and 400+200=600. Does Teri's reasoning make sense? Why?
Yes. Reasoning Varies.
Use bar diagrams to help write the equations.
Ryan reads a book with 420 pages. He also reads 7 magazine articles. Each article has 6 pages. How many pages does Ryan read?
462 pages.
n= number of artcile pages
7x6=number of article pages
=42 article pages
t= total pages read
420+ 42= total pages read
=462 pages
Without using your math tables. What is 50x7=?
350
Draw a diagram to help write the equations.
A ship has 439 passengers. 179 passengers get on at a port. Then 250 passengers get off. How many passengers are on the ship now?
368 passengers left on the ship.
439+179 = total number of passengers
= 618 total passengers.
618-250= passengers left.
=368 passengers left on the ship.
Use bar diagrams to help write equations.
Roger reads a poem with 16 lines. Eac line has 7 words. The poem is on 2 pages with the same number of lines on each page. How many words are on each page?
56 words.
16 lines/ 2 pages= lines on a page
=8 lines
8 lines x 7 words = words on each page
=56 words