Word problems
The average distance between Neptune and the Sun is 2,798,842,200 miles.
Complete the statement.
The value of 8 in the hundred thousands place is ___
the value of 8 in the millions place.
1/10
Estimate the sum.
7,190
+ 1,426
About 8,600 or 8,000?
What is 5,700,000 written as a whole number times a power of 10?
57 x 105
Find the unknown addend.
8 + (7 + 9) = (8 +____ ) + 9
7
Bonus: What is the property?
What is the standard form of 7 × 10,000 + 1 × 100 + 9 × 1?
a. 7,199
b. 70,109
c. 71,099
d. 701,099
What is B 70,109?
Dan writes 30,831 words of a novel. His friend edits the novel and removes 7,192 words. If Dan’s goal is to have 50,000 words in the novel, how many words does he have left to write after his friend’s edits?
Part A
Estimate the difference by rounding to the nearest thousand.
about 26,000 words
Estimate the difference.
78,195
−32,819
What is
about 45,000 or 50,000?
What is the standard form of 9×107?
90,000,000
Find the sum.
8,034,607
+12,310,518
20,345,125
What is the standard form of 6,000,000 + 80,000 + 900 + 70 + 1?
6,080,971
Dan writes 30,831 words of a novel. His friend edits the novel and removes 7,192 words. If Dan’s goal is to have 50,000 words in the novel, how many words does he have left to write after his friend’s edits?
Without calculating the difference, is your estimate greater than or less than the actual difference?
less than
Which of the following has an estimated sum of 5×1065×106?
a. 5,128,350 + 710,318
b. 4,016,735 + 116,369
c. 1,815,002 + 3,208,153
d. 9,735,129 + 4,691,730
c. 1,815,002 + 3,208,153
Complete the expanded form of 7,030,600.
(7 ×___ ) + (3 × _______) + (6 × ____)
(7 x 1,000,000) + (3 x 10,000 ) + (6 x 100 )
Find the difference.
53 − 0 =
53
Bonus
What is the property?
What is the number name for 38,100,000,000?
thirty-eight billion, one hundred million
Dan writes 30,831 words of a novel. His friend edits the novel and removes 7,192 words. If Dan’s goal is to have 50,000 words in the novel, how many words does he have left to write after his friend’s edits?
How many words does Dan have left to write after his friend’s edits?
30,831 - 7,192 = 26,361
One ton is the same as 907,185 grams.
Complete the expanded form of this number.
(__ × 105) + (___× 103) + (__ × 102) + (__× 101) + (__ × 100)
(__9 x 105) + (_7_ x 103) + ( __1_ x 102) + ( _8_ x 101) ( _5__ x 100)
What is the number name of the following number? (3 × 100,000,000) + (3 × 10,000,000) + (5 × 1,000,000) + (8 × 100)
three hundred thirty-five million, eight hundred
Align. Then add.
5,607 + 3,819 + 963
10,389
Add using properties and mental math.
50 + 2,500 + 30,000 +10,550
43,100
One ton is the same as 907,185 grams. Complete the expanded form of this number.
(__ x 105) + (__ x 103) + ( ___ x 102) +( __ x 101) + ( ___ x 100)
(__9 x 105) + (_7_ x 103) + ( __1_ x 102) + ( _8_ x 101) +( _5__ x 100)
In what place is the digit 1?
360,217,851
ten thousands
Subtract using mental math.
601,000 − 427,271 =
173,729