Order of operations
6 + 4 × 2
14
4 × 2 = 8, 6 + 8 =14
1/4 + 3/4
1
1/4 + 3/4= 4/4
4.2 + 1.3
Answer: 5.5
4 × 3 × 2
Answer: 24 cubic units
15 − 3 × 4
3
3 × 4 = 12
15 − 12 = 3
2/3 + 1/6
5/6
2/3 = 4/6 (find common denominator)
4/6 + 1/6 = 5/6
7.5 − 2.86
Answer: 4.64
6 × 5 × 3
Answer: 90 cubic units
(8 + 2) × 3
30
8 + 2 = 10
10 × 3 = 30
5/8 − 1/4
Answer: 3/8
1/4 = 2/8 (common denominator)
5/8 − 2/8 = 3/8
3.4 × 2
Answer: 6.8
8.5 × 2 × 4
Answer: 68 cubic units
24 ÷ 3 + 5 × 2
18
24 ÷ 3 = 8 and 5 × 2 = 10
8 + 10 = 18
3/5 × 4/7
Answer: 12/35
6.3 × 0.4
Answer: 2.52
10 × 3.5 × 2
Answer: 70 cubic units
6 + (18 ÷ 3) × 4 − 5
18 ÷ 3 = 6
6 × 4 = 24
6 + 24 = 30
30 − 5 = 25
2 1/2 ÷ 3/4
Answer: 3 1/3
2 1/2 = 5/2
5/2 × 4/3 = 20/6 = 10/3 = 3 1/3
5.6 ÷ 0.8
Answer: 7
Volume = 240
10 × 4 × h = 240
40h = 240
6 units