3RD GRADE MATH - ESTIMATING SUM OF NUMBERS — Steemit - Free Printable

Final Answer:
1) 130
2) 60
3) 40
4) 150
5) 180
6) 150
7) 600
8) 1250
9) 1250
10) 1750
11) 2000
12) 1010

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Explanation:
Let’s go step by step. The goal is to estimate — that means we don’t need the exact answer, just a close guess.

We round each number to the nearest easy number (like 10, 50, or 100), then add them.

Example from problem 1:
75 → rounds to 80
45 → rounds to 50
80 + 50 = 130 ✔

Now let’s do problem 2:
32 → rounds to 30
27 → rounds to 30
30 + 30 = 60 ✔

Problem 3:
18 → rounds to 20
19 → rounds to 20
20 + 20 = 40 ✔

Problem 4:
81 → rounds to 80
67 → rounds to 70
80 + 70 = 150 ✔

Problem 5:
93 → rounds to 90
87 → rounds to 90
90 + 90 = 180 ✔

Problem 6:
72 → rounds to 70
77 → rounds to 80
70 + 80 = 150 ✔

Problem 7:
332 → rounds to 330
267 → rounds to 270
330 + 270 = 600 ✔

Problem 8:
802 → rounds to 800
445 → rounds to 450
800 + 450 = 1250 ✔

Problem 9:
549 → rounds to 550
697 → rounds to 700
550 + 700 = 1250 ✔

Problem 10:
902 → rounds to 900
847 → rounds to 850
900 + 850 = 1750 ✔

Problem 11:
999 → rounds to 1000
997 → rounds to 1000
1000 + 1000 = 2000 ✔

Problem 12:
497 → rounds to 500
512 → rounds to 510
500 + 510 = 1010 ✔

You got this! Just round both numbers and add them. Easy peasy.