Estimate
Which vocabulary phrase describes numbers that are easy to multiply and are close to actual numbers?
A. place value numbers
B. compatible numbers
C. prime numbers
D. even numbers
What are compatible numbers?
Find the product of 14 x 12
What is 168?
Find the product of 25 x 12. Use the Distributive Property.
25 x 12 = 25 x (10 + 2)
= (25 x 10) + (25 x 2)
= (20 + 5) x __ + (20 + 5) x __
= (20 x __) + (5 x __) + (20 x __) + (5 x __)
= __ + __ + __ + __
= ____
What is 300?
In a zoo an adult elephant eats about 18 pounds of hay and grain each day. About how many pounds of hay and grain does an adult elephant eat in 31 days?
What is 600 lbs?
Choose an expression to estimate the product of 32 x 44.
What is 30 x 40?
Find the product of 152 x 14
What is 2,128?
What is the value of 32 x 12?
What is 384?
Robert wants to buy a Nintendo Switch for his birthday. He has saved $35 so far. The price of the Nintendo Switch is 12 times what he has saved. How much more does Robert need to save to buy the Nintendo Switch?
What is $385?
Choose two expressions that can be used to estimate the product of 13 x 77
A. 10 x 80
B. 10 x 90
C. 15 x 80
D. 15 x 90
E. 10 x 70
What is 10 x 80 and 15 x 80?
Find the product of 132 x 28
What is 3,696?
Solve 27 x 85
What is 2,295?
Alex bought 13 packages of baseball cards with 15 baseball cards in each package. He also bought 12 packages of stickers with 28 stickers in each package. How many baseball cards and stickers does he have in all?
What is 531?
Find the two estimates that the product is between.
55 x 28
A. 800
B. 1,000
C. 2,000
D. 900
E. 1,800
F. 2,500
What is 1,000 and 1,800?
Evaluate 39 x 56
What is 2,184?
What is the product of 74 x 53?
What is 3,922?
A store orders 17 boxes of 42 bracelets each and 22 boxes of 35 rings each. How many more rings than bracelets did the store order?
What is 56?
Mrs. Williams purchased new microscopes for her science class. The microscopes that were shipped to the school came in boxes of 12. There were 28 boxes of microscopes in all. What is the total number of microscopes that were shipped to the school?
What is 336 microscopes?