Question

evaluate the expression.
1 ( 7 + 6 \times 2 = ) ____\t\t2 ( 0.25 \times 16 + 4 = ) ____
3 ( 26 - 3 \times 4 = ) ____\t\t4 ( 18 + 14 \times 0.5 = ) ____
5 ( 18 div 2 + 7 = ) ____\t\t6 ( 8 + 6 \times 3^2 = ) ____
7 ( 18 - 8^2 div 4 = ) ____\t\t8 ( 12 - 8 \times 0.25 = ) ____
9 ( 9 + 25 div 5^2 = ) ____\t\t10 ( 6^3 div 9 + 3 = ) ____
11 ( 48 div 0.5 + 2 = ) ____\t\t12 ( 42 + 0.2 \times 30 = ) ____
13 ( 36 div 3 \times 4 = ) ____\t\t14 ( 131 - 4 \times 2^3 = ) ____
15 ( 56 - 0.3 \times 40 = ) ____\t\t16 ( 32 - 8 + 11 = ) ____
17 ( 96 div 2^4 + 32 = ) ____\t\t18 ( 35 - 0.5 \times 56 = ) ____
19 ( 10^2 div 5 \times 4 = ) ____\t\t20 ( 3^3 + 18 div 3 = ) ____

Explanation:

Problem 1: \( 7 + 6 \times 2 \)

Step 1: Multiply first (order of operations)

\( 6 \times 2 = 12 \)

Step 2: Add the result to 7

\( 7 + 12 = 19 \)

Step 1: Multiply 0.25 and 16

\( 0.25 \times 16 = 4 \)

Step 2: Add 4 to the result

\( 4 + 4 = 8 \)

Step 1: Multiply 3 and 4

\( 3 \times 4 = 12 \)

Step 2: Subtract from 26

\( 26 - 12 = 14 \)

Answer:

19

Problem 2: \( 0.25 \times 16 + 4 \)