Strategies
What strategy stacks the numbers and involves mental math?
What is standard?
6x7
What is 42?
Billy has 1,201 pictures in each book. How many pictures will he have in 4 books?
What is 4,804 pictures?
Round 130 to the nearest hundred
What is 100?
100,000 x 12
What is 1,200,000?
What strategy involves drawing a large box split up by place values and adding up totals at the end?
20 x 9
What is 180?
If Jenny makes $254 a week, ABOUT how much money will she make in two weeks?
What is $600?
Round 125 to the nearest ten
What is 130?
61 x 13
What is 793?
What strategy includes a property that splits a number up by place value and distributes a number across them all, then adds up all the totals to find the answer?
What is the distributive property?
226 x 5
What is 1,130?
Lenny collects 39 rocks a week. How many rocks will he have in 4 weeks? Solve this problem, then state if this is an estimate or exact answer.
What is 156 and exact?
Round 1,459 to the nearest hundred
612,345 x 9
What is 5,511,105?
What is it called when rows and columns are drawn to help solve a multiplication problem?
What is an array?
3,478 x 8
What is 27,824?
Tessa buys 41 apples and Lila buys 37 pears. About how much fruit do they buy together? Solve and tell is this is an estimate or exact answer?
What is 80 and estimate?
Round 140,653 to the nearest ten
What is 140,650?
954,098 x 7
What is 6,678,686?
What strategy of multiplication contains many pictures of blocks, sticks, and squares to help count up to an answer?
What is grouping?
493 x 27
What is 13,311
Ally walked 12,452 steps on Tuesday. If she walks the same amount for a week, how many steps will she have walked? Solve and tell if this is an estimate or exact answer.
What is 87,164 and exact?
Round 167,948 to the nearest ten thousand.
What is 170,000?
3,002,057 x 15?
What is 45,030,855?