Solutions

1. 19 (Written Solution)

   To determine how many times 8 goes into 152, first, look at the 1 in 152. We can’t make 8 with 1, or in other words, there aren’t enough pieces in 1 to have a set of 8. Next, we look at the digits 1 and 5 together, and ask ourselves how many times would 8 go into 15, or how many sets of 8 can we get with 15 pieces? The answer is 1 time or 1 set of 8.

   Place the 1 in the answer location above the 5.

   

   Next, multiply 8 × 1 and put the solution of 8 below the 5. We place the 8 below the 15 and subtract 15 − 8. The remainder is 7. Place the 7 below the 5 and 8.

   

   The next step is to bring down the 2 in 152 and place it next to the 7 in the remainder. Now we have 72 in this area.

   

   We are still dividing our original problem, but we are doing it in parts.

   The next step is to determine how many times will 8 go into 72 and the answer is 9 because 8 × 9 = 72.

   Place the 9 in the answer area above the 2 in 152.

   

   Since 8 × 9 is 72 we will place 72 below the 72 and subtract. We have 0 remaining. We can stop dividing once we reach a remainder of 0.

   

   The answer to 152 divided by 8 is 19.

   
   
   
2. 81 (Written Solution)

   To determine how many times 20 goes into 1620, first we test the 1. There are zero sets of 20 in 1. Next, we look at the digits 1 and 6, and ask ourselves how many times would 20 go into 16? Again, there are zero sets of 20 in 16, so it goes into 16 zero times. Next, we look at the digits 1, 6 and 2 together and ask ourselves how many times would 20 go into 162? The answer is about 8 times.

   

   Multiply 8 × 20. We find that 8 × 20 = 160. Place the 160 below the 162 and subtract. We have a remainder of 2.

   

   We now bring down the 0 from the top, to make 20.

   

   Now we are ready to repeat the process again by asking ourselves how many times does 20 go into 20. The answer is 1 time. We know that 20 × 1 = 20. We place the 1 in the answer location above the 0 in 1620 and multiply 1 × 20 = 20. Place the 20 below the other 20 and subtract. We have 0 left over and no other digits to bring down, so we can stop our division process.

   

   The answer to the original question of how many times 20 goes into 1620 is 81 times.

   
   
   
3. 27 (Solution Video | Transcript)
4. 77
5. 271 (Solution Video | Transcript)
6. 714