Place Value
What is the value of 3 in the number 3,500?
3,000
Calculate 45.7x72
3,290.4
True or False: Since 87×5=435, does 87.0 x 5=435?
True
0.2 x 100
20
0.4+0.3
0.7
In the number 4,560, how many times greater is the value of the 5 than the value of the 6?
10 times greater
458×32
14,656
From the list, pick the two true equations that are true.
87x5=435
87x0.05=4.35
8.7x50=43.5
0.87x5.0=0.435
87x5=435
87x0.05=4.35
100 x 0.92
92
2.5-1.2
1.3
If 572.481 is multiplied by 10, where will the decimal point be in the product?
Between the 4 and 8
418x45
18,810
Solve 0.8 x 102
81.6
0.3 x 104
3,000
3.75+2.4
6.15
Find the product 4×0.36 and explain why the decimal is placed where it is.
1.44
There are 2 digits after the decimal.
389 x 63
24,507
True or False
Since 506 x 2= 1,012 then 5.06 x 2 = 12.12
True
94.19 x 102
9,419
5.06-3.89
1.17
1,250
12.5
8,635 x 75
647,625
What is the value of n if 10n = 100,000
n=5
670.9 x 103
670,900
12.345+7.89
20.235