mental arithmetic Flashcards
1
Q
2 + 3
A
5
2
Q
? + 65 = 100
A
35
3
Q
7 ÷ 2
A
3.5
4
Q
140 - 10
A
130
5
Q
145 + ? = 190
A
45
6
Q
81 = 40 + ?
A
41
7
Q
306 - 303
A
3
8
Q
10 × 8 = 80, so 80 ÷ 10 =
A
8
9
Q
whats 20:21 in 12 hour format?
A
8:21 pm
10
Q
1 + 4
A
5
11
Q
19 + 81
A
100
12
Q
2 ÷ 2
A
1
13
Q
42 - 10
A
32
14
Q
124 + ? = 200
A
76
15
Q
84 = 34 + ?
A
50
