3학년 2분기 시험

Write a multiplication sentence for each addition.

1. 1
   $2+2+2+2=$ $\boxed{}\times \boxed{}=\boxed{}$
2. 2
   $8+8+8=$ $\boxed{}\times \boxed{}=\boxed{}$

Fill in each box.

1. 3
   $8\times 2=$ $2\times \boxed{}$
2. 4
   $2\times 4=$ $2\times 1+2\times \boxed{}$

Multiply.

1. 5
   $2\times 8\times 3=$ 
2. 6
   $4\times 2\times 6=$ 
3. 7
   $30\times 4=$ 
4. 8
   $40\times 3=$ 
5. 9
   $1\times 1=$ 
6. 10
   $2\times 10=$ 
7. 11
   $10\times 10=$ 
8. 12
   $8\times 8=$ 
9. 13
   $\boxed{}\times 7=$ $21$

Multiply. Fill in any missing numbers.

1. 14
   $9\times 1=$ 
2. 15
   $9\times \boxed{}=$ $72$

Find the number that goes in each box.

1. 16
   $\boxed{}\times 3=$ $21$
2. 17
   $\boxed{}\times 6=$ $48$

Divide.

1. 18
   $3÷3=$ 
2. 19
   $15÷5=$ 
3. 20
   $18÷6=$ 
4. 21
   $64÷\boxed{}=$ $8$

Use the first fact to fill in the box.

1. 23
   If $3\times 5=15$, then $15÷5=$ ​
2. 24
   If $6\times 10=60$, then $60÷10=$ ​

Find the rule and fill in the missing numbers.

1. 25
   $60,65,\boxed{},75,\boxed{},85$
2. 26
   $50,75,\boxed{},125,150,\boxed{}$
3. 27
   $27,39,\boxed{},63,\boxed{},87$
4. 28
   $28,33,\boxed{},43,\boxed{},53$
5. 29
   $\begin{array}{cccccc}\text{In}& 8& 10& 12& 14& 16\\ \text{Out}& 17& 19& & 23& \end{array}$
6. 30
   $\begin{array}{cccccc}\text{In}& 13& 14& 15& 16& 17\\ \text{Out}& 9& 10& 11& & \end{array}$