Rounding
Round 82 to the nearest 10.
82
Estimate the sum by finding friendly numbers/rounding.
68+72
140
428 + 495
923
354 - 176
178
The school library has 347 fiction books and 286 nonfiction books. How many books are in the library all together?
633
Round 73 to the nearest 10
70
Estimate the sum by finding friendly numbers/rounding
47+54
100
609 + 296
905
807 - 425
382
There are 850 students at school. 276 are going on a field trip. How many students are staying at school?
574
Round 126 to the nearest 10.
130
Estimate the difference by finding friendly numbers/rounding.
99 - 63
40
704 + 256
960
999 - 171
828
The third graders have 350 pens and pencils. They sell 57 pencils and 37 pens. How many pens and pencils do they have left?
256
Round 164 to the nearest 100.
200
Estimate the difference by finding friendly numbers/rounding
496 - 428
70
571 + 399
970
500 - 251
249
Third grade collected 800 cans. The fourth grade collected 492 cans. How many more cans did third grade collect than fourth grade? Write the equation AND solve.
308
Round 734 to the nearest 100.
700
Estimate the sum by finding friendly numbers/rounding.
609 + 296
910
807 + 425
1,232
800 - 695
105
Ms. Marley has 86 papers to grade. She grades 24 papers on Monday. Which equation can be used to find how many more papers, p, she has left to grade?
A. p = 86 - 11
B. p = 86 - 24
C. p = 86 + 11
D. p = 86 + 24