Rounding to 10s and 100s
Round to the nearest 10.
143
140
Estimate the sum. Show all the parts of the problem. 46 + 72 =
50 + 70 = 120
Complete the rule:
5 or more.....
Up the score. Number rounds UP.
Prathik and William went to the park. They spent 92 minutes there. About how long were they there?
90 minutes
OR
100 minutes
Round to the nearest 10.
4
0
Use estimation to the nearest hundred. Show all your work. 324 + 649 =
300 + 600 = 900
Complete the rule.
4 or less....
Let it rest. Number stays the same.
Jesse drove 345 miles on Friday and 219 miles on Saturday to get to the family reunion. Estimate how many miles Jesse travelled in all?
500 miles
Round to the nearest 10.
765
770
Use estimation to the nearest hundred: 68 + 776. Show all your work.
100 + 800 = 900
Estimate/About how many mean...
Round
Maya only feeds her dog two kinds of treats. Last year, Maya fed her dog 23 peanut butter treats and 78 carrot treats. About how many treats did Maya feed her dog last year?
100 carrot treats
Round to the nearest 100.
2,411
2,400
Sally wants to add these three numbers.
67 + 132 + 286
Rewrite her equation to show a way she can estimate the sum.
100 +100 + 300
OR
70 + 130 + 290
When rounding a number, I underline the digit I'm rounding to and then look at the digit to the _______ to find the estimate.
Look at the digit to the RIGHT of the number you are rounding.
Erica picked three numbers at random and formed a number; 2, 2, and 8. To the nearest hundred, the number rounds to 300. Using the three digits, what is her number?
282