Unit Review: Mixed operations & unknowns

I.1Solve. Check each sign before you start.

1. 1
   $35+38=$ 
2. 2
   $99-65=$ 
3. 3
   $7\times 0=$ 
4. 4
   $38-22=$ 

I.2I.3Find the number that goes in each box.

1. 5
   $\boxed{}\times 3=$ $21$
2. 6
   $14÷\boxed{}=$ $2$
3. 7
   $\boxed{}\times 7=$ $28$
4. 8
   $4÷\boxed{}=$ $2$
5. 9
   $80÷\boxed{}=$ $10$
6. 10
   $\boxed{}+53=$ $60$
7. 11
   $\boxed{}÷2=$ $5$
8. 12
   $56÷\boxed{}=$ $8$

I.1Add, Subtract, Multiply & Divide

1. 173
2. 234
3. 30
4. 416

I.2I.3Find the number that goes in each box.

1. 57
2. 67
3. 74
4. 82
5. 98
6. 107
7. 1110
8. 127