Basic Math Fact
What is the BMF of 300x2
3x2
Break apart 237 into it's place values
200
30
7
Algorithm
A method to solving a problem
56x7
420
Kenny has 7 pouches. Each pouch has 21 marbles. About how many marbles does Kenny have?
140
What is the BMF of 600x5
6x5
Break apart 3,578 into it's place values
3,000
500
70
8
partial product
part of the answer
123x4
400
Noah bought 42 games. Each game cost $5. About how much did he spend on all his games?
$200
What is the BMF of 200x7
2x7
Solve 143x4
572
about
the approximate answer
643x5
3000
90
What is the BMF of 200x10
2x1
Solve 287x2
574
Estimate
approximate answer
835x9
7200
Daniel has 4 packs of gum. Each pack has 12 sticks. Daniel says he has about 400 sticks in all. Is this answer reasonable?
No. He has about 40 sticks.
What is the BMF 400x500
4x5
Solve 218x7
1,526
Reasonableness
How reasonable an answer is
936x5
4500
Jaz has 13 dogs. Each dog eats 3 cups of food a day. She says she goes through about 30 cups of food a day. Is this reasonable?