Write the following number in expanded form.
92,318
90,000+2,000+300+10+8
Round to estimate, then add.
2,189 + 1,388 =
2,000 + 1,000 = 3,000
3 x 90 =
3 x 900 =
3 x 9,000=
3 x 90,000 =
270
2,700
27,000
270,000
use basica facts and place value to find the product.
30 x 70 =
2,100
Thirty five thousand,four hundred seventeen people attended a county fair. Write this total in standard form using numerals.
35,417 people
Use your knowledge of place value to complete the comparison equation.
70,000+2,000 _____ 70,000 + 200
72,000 > 70,200
Round to estimate, then subtract.
9,245 - 4,033 =
9,000 - 4,000= 5, 000
Estimate the product.
4 x 279 =
4 x 300 = 1,200
Find the product.
50 x 15=
5 x 15
5 x 10= 50
5 x 5 = 25
50 + 25 = 750 (don't forget the zero)
In one week, Katy walks 1,750 meters and runs 1,925 meters. How many meters does Katy walk and run?
3,675 meters
Round this number to the hundreds place.
49,851
49,900
Add these numbers to find the sum.
387,969 + 562,031 =
950,000
Multiply using area model or partial product.
46 x 8 =
8 x 40 = 320
8 x 6 = 48
320 + 48 = 368
48 x 29 =
50 x 30 =
5 x 3 = 15 (add 2 zeros)
1,500
Select all of the numbers that are partial products of
8 x 1,126
a) 48
b) 80
c) 160
d) 800
e) 8,000
e- 8,000
d- 800
c - 160
a- 48
Round this number to the tens place.
251,372
251,370
Subtract these numbers to find the difference.
8,737 - 6,754 =
1,983
Multiply using area model or partial product.
538 X 3 =
3 x 500 = 1500
3 x 30 = 90
3 x 8 = 24
1,500+90+24 =1,614
23 x 46 =
1,058
Barb exercises for 22 hours each week. How many hours does she exercise in 14 weeks? Use area model to solve.
22 x 14 = 308 hours
Which of the following shows the values of the 5s in 15,573?
A) 500 and 5
B) 500 and 50
C) 5,000 and 50
D) 5,000 and 500
D- 5,000 and 500
Subtract across zeros to find the difference.
40,000 - 29,526 =
10,474
Multiply using area model or partial product.
9 x 6,384 =
9 x 6,000= 54,000
9 x 300 = 2,700
9 x 80 = 720
9 x 4 = 36
54,000+2,700+720+36 = 57,456
Find the product using area model
82 x 74 =
6, 068
Miranda says 30 x 26 is greater than 20 x 36. Is she correct? Find the product of both equations.
30 x 26 = 780
20 x 36 = 520
Miranda is correct.