Mental math
48 + 39 = ?
87
Double 47.
94
What is 18 × 5?
90
What is 17²?
289
What is 49 × 11?
539
What is 25% of 80?
20
Half of 156
78
15% of 60 = ?
9
300 − 125 = ?
175
What is 125 × 16?
2000
125 ÷ 5 = ?
25
What is 9²?
81
99 + 101 = ?
200
What is 12.5% of 80?
10
What is 999 + 999?
1998
What is 15 × 8?
120
What is 11 × 11?
121
What is 25 × 4?
100
Find 20% of 350.
70
What is 48 × 25?
1200
200 − 87 = ?
113
75% of 200 = ?
150
84 ÷ 7 = ?
12
What is 7 × 8 × 2?
112
What is 75²?
5625