Unit Review: Understanding multiplication

F.1Write a multiplication sentence for each addition.

1. 1
   $4+4=$ $\boxed{}\times \boxed{}=\boxed{}$
2. 2
   $7+7=$ $\boxed{}\times \boxed{}=\boxed{}$
3. 3
   $7+7+7+7=$ $\boxed{}\times \boxed{}=\boxed{}$
4. 4
   $3+3+3+3=$ $\boxed{}\times \boxed{}=\boxed{}$

F.2Fill in each box.

1. 5
   $69\times 1=$ ​
2. 6
   $0\times 76=$ ​
3. 7
   $68\times 1=$ ​
4. 8
   $0\times 57=$ ​

F.3F.4Multiply.

1. 9
   $4\times 4\times 4=$ 
2. 10
   $4\times 7\times 3=$ 
3. 11
   $3\times 5\times 2=$ 
4. 12
   $3\times 2\times 4=$ 
5. 13
   $80\times 9=$ 
6. 14
   $3\times 90=$ 

F.4Multiply. (continued)

1. 15
   $60\times 8=$ 
2. 16
   $90\times 6=$ 

F.5Multiply.

1. 17
   88

   ×5
2. 18
   83

   ×2
3. 19
   90

   ×9
4. 20
   21

   ×6

F.1Repeated Addition & Multiplication

1. 1$2\times 4=8$
2. 2$2\times 7=14$
3. 3$4\times 7=28$
4. 4$4\times 3=12$

F.2Properties of Multiplication

1. 569
2. 60
3. 768
4. 80

F.3F.4Multiply.

1. 964
2. 1084
3. 1130
4. 1224
5. 13720
6. 14270
7. 15480
8. 16540

F.5Multiply 2-Digit by 1-Digit Numbers

1. 17440
2. 18166
3. 19810
4. 20126