Rounding to Tens
Round the following number to the nearest 10
73
70
Round the following number to the nearest 100
275
300
Round 8,912 to the nearest ten
8,910
Sally has 75 rocks in her rock collection. Her mom brings home 18 more. Rounding to the nearest ten, about how many rocks does Sally have?
80+20=100
Using the number below, what value and place of the 8 in?
3,581
Value: 80
Place: Tens or 10s
Round the following number to the nearest 10
342
340
Round the following number to the nearest 100
3,393
3,400
Round 14,689 to the nearest hundred
14,700
Mrs. Lundeen has 189 books at home. She bought 93 more at the book fair. Rounding to the nearest hundred, about how many books does Mrs. Lundeen have now?
200+100=300
Using the number below, what value and place of the 3 in?
2,430,581
Value: 30,000
Place: Ten Thousands or 10,000s
Round the following number to the nearest 10
2,414
2,410
Round the following number to the nearest 100
72,699
72,700
Round 2,371,399 to the nearest ten
2,371,400
Mrs. Mosher has 78 spiral notebooks. About how many spiral notebooks does Mrs. Mosher have?
Nearest ten: 80
Nearest hundred: 100
If you have 529 jellybeans and a friend has 814 jellybeans. ABOUT how many do you have together?
530 + 810 = 1,340
or
500 + 800 = 1,300
Round the following number to the nearest 10
76,368
76,370
Round the following number to the nearest 100
932,412
932,400
Round 176,548 to the nearest hundred
176,500
Ms. Kelley has 219 dog items in her classroom. She brings 43 more from home. About how many dog items does Ms. Kelley have at school now?
220+40=260
Using the number below, what value and place of the 1 in?
1,348,256
Value: 1,000,000
Place: Millions
Round the following number to the nearest 10
524,198
524,200
Round the following number to the nearest 100
1,520,723
1,520,700
Round 3,845,175 to the nearest ten
3,845,180
Sarah had 455. Alan had 145 stamps. Show number sentence that shows the most reasonable estimate for the difference in the amount of stamps.
460-150=310
Each of the 3rd grade teachers are collecting pencils for the beginning of the school year. Ms. Birtles has 312 pencils, Ms. Maulella has 284 pencils, Mr. Pestcoe has 318 pencils, Ms. Reynolds has 177 pencils, and Ms. Vivirito has 433 pencils. ABOUT how many pencils do the 3rd grade teaches have in all?
310 + 280 + 320 + 180 + 430 = 1,520
or
300 + 300 + 300 + 200 + 400 = 1,500