Prime & Composite
Which of these is not a prime number, 9, 19, 29, or 59?
9
Round to the nearest tenth
156.495
156.5
432,178 What place is the 2 in?
Thousands
526 x 10
5260
x = 284 + (8 × 20)
solve for x
444
How many prime numbers are between 10 and 30?
6
Round to the nearest hundredth
2.566
2.57
781.234 What number is in the tenths place?
2
526 x 11
5786
m = (2 × 254) + (4 × 85) − 450
398
Jill counted 73 balloons at a party. Is the number she counted a prime number?
Prime
Round to the nearest whole number
101.526
102
7,238.19 What is the value of the number in the hundreds place?
200
343 x 30
10290
m = 45 − [(2 × 7) + (2 × 4)]
23
Evan used a pattern to count numbers. He counted 4, 8, 12… all the way to 24. How many prime numbers did he count?
0
Estimate the sum to the nearest whole number
142.6 and 157.45
300
2,783.12 What place is the 1 in?
tenths
3.6 x 7.1
25.56
A = 750 × 42 − (750 − 665) × (42 − 7)
28525
Which of these is a prime number: 21, 51, 53, or 77?
53
If Janice drove a total of 465.2 miles on Friday, Saturday, and Sunday. Estimate to the nearest 10 miles how many miles she drove each day.
160 miles
81.34 Write this number in expanded notation.
(8x10)+(1x1)+(3x0.1)+(4x0.01)
1.62 x 47
76.14
100 + [34 − (4 + 2) × 3] ÷ 4
104