Grade 6 Quarter 1 Test

Use the divisibility rules for 2, 3, 4, 5, 6, 9, and 10. When asked which divide a number, list all of them.

1. 1
   Is 30,590 divisible by 10? 
2. 2
   Is 354 divisible by 6? 

List all the factor pairs.

1. 5
   List all the factor pairs of 122.
2. 6
   List all the factor pairs of 111.

Write each prime factorization using exponents.

1. 7
   Write the prime factorization of 68 using exponents.
2. 8
   Write the prime factorization of 332 using exponents.

Find each GCF.

1. 9
   Find the greatest common factor (GCF) of 28 and 48.
2. 10
   Find the greatest common factor (GCF) of 18, 122, and 116.

Find each LCM.

1. 11
   Find the least common multiple (LCM) of 7 and 5.
2. 12
   Find the least common multiple (LCM) of 3, 6, and 7.

Answer each question.

1. 13
   Find the least common multiple (LCM) of 5 and 4.

Add or subtract. Line up the decimal points.

1. 14
   20.71

   −15.11
2. 15
   20.127

   +89.737
3. 16
   50.273

   +93.974
4. 17
   323.62

   −56.70

Round each decimal to the place named, then add or subtract to estimate.

1. 18
   Nearest whole number: $49.38-35.29$
2. 19
   Nearest tenth: $6.648+15.78$

Use the fact given to find each product or quotient.

1. 20
   $66\times 49=3,234,\text{ so }6.6\times 4.9=$ 

Multiply.

1. 21
   0.5

   ×8.6
2. 22
   18.33

   ×3.7
3. 23
   0.35

   ×4.9

Multiply or divide.

1. 24
   $0.17\times 1,000=$ 
2. 25
   $0.7\times 10^3=$ 
3. 26
   $9.59÷10^3=$ 

Divide.

1. 29
   3.322.308
2. 30
   7.856.628