When multiplying and dividing... what do we need to make sure lines up every time???
Place value, digits... etc.
200
659 X 300
197,700
200
1,200 / 400
3
200
51 - 17 + 37
71
200
How do you check to see if a division problem is correct?
Multiply the answer and the division problem!
300
ESTIMATE each product
9,470 X 32
9,000 X 30 = 270,000
300
ESTIMATE each quotient
1,135 / 84
1,000 / 80 = 12R40 or 13
300
81 / 9 x 24
216
300
A bin of potatoes weighs 100 pounds. The potatoes are packed into bags that weigh 15 pounds each. How many bags of potatoes are there? How many pounds are left?
6 bags there are 10 lbs left
300
When dividing, are you making a number bigger or smaller?
smaller.
repeated subtraction
400
2,757 X 14
38,598
400
Divide. Give the quotient AND remainder
295 / 31
9 R 16
400
66 - 16 / 8
64
400
A group of volunteers buy 32 cartons of 40 apples. The volunteers pack the apples into bags of 5 each and sell each bag for $4 to raise money for charity. How much do they collect after selling the apples?