Order of Operations
2 xx 2+2xx3
10
Estimate the answer to
49 x 12=
500
Round to the nearest 10
42
40
4^2
16
sqrt(1)
1
(9-5)xx11+4
48
Estimate the answer to
705 x 78=
56,000
Round to the nearest 1000
37,499
37,000
7^2
49
sqrt(81)
9
35 – 5^2 + (6 – 2)
14
Estimate the answer to
99 x 35=
4000 or 3500
Round to 1 significant figure
9345.22
9000
3^3
27
root(3)(125)
5
1+3×√9+(8-2)/3
12
Estimate the answer to
3 x 6.78
21
Round to 2 significant figures
1.605
1.6
10^2-4^2
84
root(3)(64)+sqrt169
17
(6^2+2xx2)/(2xx(15-5))×6+2
14
Estimate the answer to
10365 -: 391
25
Round to 3 significant figures
0.019453
0.0195
4^3+3^3-5^2
66
root(3)(216) xx root(3)(27)+9^2
99