Rounding
Round 44 to the nearest tens
40
Estimate the sums
26 + 15
30 + 20 = 50
Estimate the difference
34 - 23
30 - 20 = 10
There are 5 apple trees in the park. 12 more apple trees were planted. Estimate how many apple trees are in the park.
10 + 10 = 20
what is the value of the digit in the hundreds place in 4,789?
700; seven hundred
Round 119 to the nearest tens
120
37 + 44
40 + 40 = 80
Estimate the difference
54 - 49
50 - 50 = 0
Mya picked 14 limes and Dan picked 18 limes. Estimate how many limes they picked together.
10 + 20 = 30
estimate 5,879+6789+6
12,680
Round 286 to the nearest 10
290
Estimate the sum
7 + 88
10 + 90 = 100
Estimate the difference
88 - 7
Jessica is reading a book that has 75 pages. She read 43 pages. About how many pages does Jessica have left to read?
80 - 40 = 40
What is the first step we do when estimating
we round each number in the problem to highest it can be
Round 454 to the nearest hundred
500
Estimate the sum
92 and 46
90 +50 = 140
Estimate the difference
92 and 46
90 - 50 = 40
Joe's school sold 53 boxes of doughnuts for a fundraiser. Bella's school sold 38 boxes of doughnuts. About how many boxes of doughnuts did the schools sell in all?
50 + 40 = 90
What is step two for estimating
when add/subtract the problm with the rounded numbers
Round 4,786 to the nearest tens
4,790
Estimate the sum
99 and 36 and 5
100 + 40 +10 = 150
Estimate the difference
99 and 36
100 - 40 = 60
Jake has 3,865 Pokemon cards. Mike bought 310 of Jake's basketball cards. About how many Pokémon cards does Jake have?
Jake has about 3,600
what sign do we use to show our answer is an estimation not the actual answer?
equivalent sign