Addition
127+384
511
186-132
54
Estimate the sum by rounding both numbers to the nearest ten.
56+45=
110
Write the better estimate for the difference:
86-24= 60 or 70
70
Nancy is very competitive about earning Eagle Bucks at school. She earned 212 in 1st grade and 231 in 2nd grade. How many did she earn in those two years?
Nancy earned 443 Eagle Bucks in 2 years.
624+581
1205
236-129
107
Solve using front end estimation:
62-37
20
Round this number to the nearest hundreds.
128
Robin has 180 candy bars. Lilly Steals 147 candy bars from Robin. How many candy bars does Robin have left?
Robin has 33 candy bars left.
239+126
365
464-257
207
Solve using front end estimation to the nearest ten.
45+8=
60
Solve using front end estimation:
45+22
70
Sam found 707 seashells on the beach. He gave Tim 459 of the seashells. How many Seashells does Sam have left?
Sam now has 248 seashells.
423+289
712
806-347
459
Write the better estimate:
68+42= 100 or 110
110
Write the better estimate for the difference.
46-17= 20 or 30
30
Create an addition word problem using two numbers of your choosing.
Share.
584+139
723
400-268
132
The first bus had 96 passengers and the second bus had 107 passengers. About how many passengers are there in total?
There are about 200 passengers into total.
Jack peeled 87 carrots. Sarah peeled 52 carrots. About how many more carrots did Jack peel?
Jack peeled about 40 more carrots than Sarah.
Create a subtraction word problem with two numbers of your choosing.
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