Question

In each of the examples given below, find the values of the expressions on either side of the empty box. Then, write the '=' sign in the proper boxes.

(1) $10-2\boxed{}4\times 2$
(2) $9-3\boxed{}18÷3$
(3) $40÷5\boxed{}2\times 3-1$
(4) $7\times 6\boxed{}22+20$
(5) $2\times 2\times 2\boxed{}2\times 3$
(6) $5+\frac{14}{7}\boxed{}\frac{6}{2}+3$

Answer 1

(1) Expression on the left-hand side:
10 − 2 = 8
Expression on the right-hand side:
4 × 2 = 8
∴ $10-2\boxed{=}4\times 2$

(2) Expression on the left-hand side:
9 − 3 = 6
Expression on the right-hand side:
18 ÷ 3 = 6
∴ $9-3\boxed{=}18÷3$


(3) Expression on the left-hand side:
40 ÷ 5 = 8
Expression on the right-hand side:
2 × 3 − 1
= 6 − 1 (Performing multiplication first)
= 5
∴ $40÷5\boxed{\ne }2\times 3-1$

(4) Expression on the left-hand side:
7 × 6 = 42
Expression on the right-hand side:
22 + 20 = 42
∴ $7\times 6\boxed{=}22+20$

(5) Expression on the left-hand side:
2 × 2 × 2 = 8
Expression on the right-hand side:
2 × 3 = 6
∴ $2\times 2\times 2\boxed{\ne }2\times 3$

(6) Expression on the left-hand side:
$$\begin{gathered} 5+\frac{14}{7} \\ =5+2=7 \end{gathered}$$

Expression on the right-hand side:
$$\begin{gathered} \frac{6}{2}+3 \\ =3+3=6 \end{gathered}$$

∴ $5+\frac{14}{7}\boxed{\ne }\frac{6}{2}+3$