Addition And Subtraction Problems Worksheet Page 10
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4028.
OPEN ENDED
Write two numbers that when rounded to the
thousands place have an estimated sum of 10,000.
29.
NUMBER SENSE
If both addends are rounded down, will the sum
of the numbers be greater or less than the actual sum? Explain.
30.
When rounding to estimate the sum or
difference of numbers, explain a situation where less exact answers
would be better than more exact answers.
31. What number completes the number
31. What number completes the number
31. What number completes the number
31. What number completes the number
32. The Casey family traveled last week.
32. The Casey family traveled last week.
32. The Casey family traveled last week.
32. The Casey family traveled last week.
sentence below?
sentence below?
sentence below?
sentence below?
They drove 182 miles on Friday,
They drove 182 miles on Friday,
They drove 182 miles on Friday,
They drove 182 miles on Friday,
(Lesson 2-1)
(Lesson 2-1)
(Lesson 2-1)
(Lesson 2-1)
138 miles on Saturday, and 119 miles
138 miles on Saturday, and 119 miles
138 miles on Saturday, and 119 miles
138 miles on Saturday, and 119 miles
(24 +
(24 +
(24 +
(24 +
) + 18 = 24 + (36 + 18)
) + 18 = 24 + (36 + 18)
) + 18 = 24 + (36 + 18)
) + 18 = 24 + (36 + 18)
on Sunday. Approximately how many
on Sunday. Approximately how many
on Sunday. Approximately how many
on Sunday. Approximately how many
A 18
A 18
A 18
A 18
C 36
C 36
C 36
C 36
miles did they travel?
miles did they travel?
miles did they travel?
miles did they travel?
(Lesson 2-2)
(Lesson 2-2)
(Lesson 2-2)
(Lesson 2-2)
B 24
B 24
B 24
B 24
D 38
D 38
D 38
D 38
F 200 miles
F 200 miles
F 200 miles
F 200 miles
H 320 miles
H 320 miles
H 320 miles
H 320 miles
G 300 miles
G 300 miles
G 300 miles
G 300 miles
J 400 miles
J 400 miles
J 400 miles
J 400 miles
Algebra
Copy and complete each number sentence. Identify
the property or rule used.
(Lesson 2-1)
33. 35 -
= 35
34. (57 +
) + 36 = 57 + (25 + 36)
Round each number to the given place-value position.
(Lesson 1-6)
35. 354; ten
36. 4,396; thousand
37. 257,468; hundred
Compare. Use >, <, or = .
(Lesson 1-4)
38. 8,650
8,623
39. 44,068
44,086
40. 248,632
284,632
41. Jameson’s basketball team scored a total of 58 points. Jameson
scored 18 points, and his sister scored 12 points. How many
points did the rest of the team score?
(Lesson 1-3)
42. Teresa’s cell phone bill is $32 each month. About how
much money does she spend on cell phone service every
two months?
(Lesson 1-3)
Lesson 2-2 Estimate Sums and Differences 61
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