What is 4 boxes of tissue with 175 tissues in each box?
100
300x6=1800. This answer is not reasonable.
302x6=192
200
250
What is 5x50
200
75
What is 3x25
200
136
What is 34x4
200
240
Use rounding to estimate 32x8.
200
No this answer is not reasonable. 3x30=90
3x29=627
300
640
What is 8x80
300
154
What is 7x22
300
132
What is 66x2
300
about 140
What is 19x7
300
420
Victor has 7 piles of coins with 63 coins in each pile. What is a reasonable amount of coins?
400
360
What is 40x9
400
114
What is 19x6
400
3,018. I multiplied 500x6=3000. There were no tens to add. Then I added 3x6=18 to 3,000 to get the product.
Find the product of 503 x 6. Explain how you found the product.
400
1,800
What is 863x2
400
Yes, 4x7=28, which rounds to 30. 30x5=150. 150 is reasonable to 140.
Erica wants to give 5 stickers to everyone in her class. Her class sits in 4 rows of 7. Erica says she will need about 140 stickers. Is this reasonable?
500
Michael added by tens instead of by 100's.
Michael used addition find 9x100. He said the product was 90. What did he do wrong?
500
First I would find partial products for 8x200=1600 next 8x40=320 and then 8x2=16. Last I would add the partial products: 1600+320+16=1936.
How can you find 242x8 by breaking apart numbers?
500
108
What is 12x9
500
3,200
What is 835x4
500
No. 10x8=80 cent. The actual answer is 96 cent. This is not close at all to 8 dollars.
John is selling baseball cards for 12 cent. He is selling 8 cards and says he will make $8. Is this reasonable?