Rounding- Place Value
Rounding- Significant Figures
Estimate
Squares, Cubes, & Roots
Order of Operations
100
Round 82,740.204819 to the thousands place.
83,000
100
Round 82,740.204819 to one sig fig.
80,000
100
Estimate using one figure approximation: 29 x 675,328
30 x 700,000
21,000,000
100
Write in index form: 5x6x4x4x5x5x5
42 x 54 x 6
100
Simplify:
10-6 times5 div(2+4)
10 - 6 x 5 / 6
10 - 30 / 6
10 - 5
5
200
Round 82,740.204819 to the thousandths place.
82,740.205
200
Round 0.0045789 to two sig fig.
0.0046
200
Estimate using one figure approximation:
85,980 div 299
90,000 / 300
900 / 3
300
200
Evaluate: 142
196
200
Simplify:
(10-6+8div2) times 3
(10-6+8/2) x 3
(10-6+4) x 3
(4+4) x 3
8 x 3
24
300
Round 9283.71649 to the nearest whole number.
9284
300
Round 0.987654321 to three sig fig.
0.988
300
Ms. Fuchs buys around 12 flowers each week. Estimate the number of flowers she gets in a year (52 weeks) using one figure approximation.
12 x 52
10 x 50
500 flowers
300
Evaluate: 43
64
300
Simplify:
[(10-6+5) div 9]times2
[(10-6+5) / 9] x 2
[(4+5)/9] x 2
[9/9] x 2
1 x 2
2
400
Round 9283.71649 to the nearest ten-thousand number.
10,000
400
Round 1,748,302.038429 to four sig fig.
1,748,000
400
Estimate using one figure approximation: 364+779+36
400+800+40
1200+40
1240
400
sqrt(361)
19
400
Simplify:
8(10-6) div 2+4
8(10-6) / 2+4
8(4) / 2 +4
32/2 + 4
16 + 4
20
500
Round 67.999 to the hundredths place.
68.00
500
Round 0.000999999998 to five sig fig.
0.001
500
Estimate using one figure approximation:
894-782 div 43
900 - 800 / 40
900 - 20
880
500
root(3)125
5
500
Simplify:
Numerator: 16[(8)-3x2]+42
16[(8)-6]+42=16[2]+42=16[2]+16=32+16=48
Denominator: 8x4-[2(3)+18/9]
8x4-[6+18/9]=8x4-[6+2]=8x4-8=32-8=24
Together: 48/24 = 2