Go through the **Spectrum Math Grade 2 Answer Key Chapter 4 Pretest **and get the proper assistance needed during your homework.

## Spectrum Math Grade 2 Chapter 4 Pretest Answers Key

**Check What You Know**

**Adding and Subtracting 2-Digit Numbers (With Renaming)**

**Add.**

Answer:

Add the ones:

Adding 5 with 7 we get 12. So add 1 to the tens place

Add the tens:

By adding 1, 4 and 3 we get 8.

Answer:

Add the ones:

By adding 6 with 9 we get 15. So add 1 to the tens place.

Add the tens:

By adding 1 and 6 we get 7.

Answer:

Add the ones:

By adding 4 with 9 we get 13. So add 1 to the tens place.

Add the tens:

By adding 1, 4 and 1 we get 6.

Answer:

Add the ones:

By adding 5 with 5 we get 10. So add 1 to the tens place.

Add the tens:

By adding 1, 6 and 2 we get 9.

Answer:

Add the ones:

By adding 6 with 7 we get 13. So add 1 to the tens place.

Add the tens:

By adding 1, 3 and 4 we get 8.

Answer:

Add the ones:

By adding 7 with 6 we get 13. So add 1 to the tens place.

Add the tens:

By adding 1, 1 and 5 we get 7.

Answer:

Add the ones:

By adding 3 with 8 we get 11. So add 1 to the tens place.

Add the tens:

By adding 1 and 3 we get 4.

Answer:

Add the ones:

By adding 9 with 8 we get 17. So add 1 to the tens place.

Add the tens:

By adding 1, 2 and 2 we get 5.

Answer:

Add the ones:

By adding 7 with 5 we get 12. So add 1 to the tens place.

Add the tens:

By adding 1, 5 and 1 we get 7.

Answer:

Add the ones:

By adding 6 with 9 we get 15. So add 1 to the tens place.

Add the tens:

By adding 1, 7 and 1 we get 9.

Answer:

Add the ones:

By adding 4 with 7 we get 11. So add 1 to the tens place.

Add the tens:

By adding 1, 6 and 2 we get 8.

Answer:

Add the ones:

By adding 6 with 5 we get 11. So add 1 to the tens place.

Add the tens:

By adding 1 with 5 we get 6.

Answer:

Add the ones:

By adding 8 with 6 we get 14. So add 1 to the tens place.

Add the tens:

By adding 1, 3 and 4 we get 8.

Answer:

Add the ones:

By adding 2 with 8 we get 10. So add 1 to the tens place.

Add the tens:

By adding 1, 1 and 4 we get 6.

Answer:

Add the ones:

By adding 8 with 6 we get 14. So add 1 to the tens place.

Add the tens:

By adding 1, 1 and 2 we get 4.

Subtract.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 93 and 65 is 28.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 54 and 49 is 5.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 23 and 5 is 18.

**Subtract.**

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 63 and 57 is 6.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 80 and 42 is 38.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 33 and 16 is 17.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 52 and 24 is 28.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 85 and 37 is 48.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 40 and 18 is 22.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 77 and 19 we get 58.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 32 and 8 is 24.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 66 and 59 is 7.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 70 and 21 is 49.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 83 and 9 is 74.

Answer:

Rename and subtract the ones:

Subtract the tens:

Therefore the difference of 94 and 67 is 27.

**Solve each problem.**

Anita picks â€˜45 .

She picks 61 .

How many more than does she pick? ________

Answer:

Given that,

Anita picks 45 strawberries.

She picks 61 graphs.

Therefore more grapes than strawberries is 61 – 45 = 16.

There are 16 graphs more than strawberries.

JosÃ© picks 38 . He picks 35 .

He uses 2 and I to make a pie.

How many pieces of fruit does JosÃ© have left? ______

Answer:

Given that,

Jose picks 38 oranges.

He picks 35 apples.

He uses 2 oranges and 1 apple.

The total number of fruits are 38 + 35 = 73.

Therefore 73 – 3 = 70.

Hence there are 70 pieces of fruits that Jose left.

Maxâ€™s bucket holds 72 .

Treyâ€™s bucket holds 44 .

How many more does Maxâ€™s bucket hold? _____

Answer:

Given that,

Maxâ€™s bucket holds 72 apples.

Treyâ€™s bucket holds 44 apples.

The number of apples that Max’s bucket hold is 72 – 44 = 28.

Therefore the Max’s bucket hold 28 apples more.

Carol and Paula have 91 . 91 – 45 =

Paula picked â€˜45 .

How many did Carol pick? _______

Answer:

Given that,

Carol and Paula have 91 Strawberries.

Paula picked 45 strawberries.

Therefore 91 – 45 = 46.

Therefore the Carol Pick 46 apples.

The farm stand has 95 for sale.

The farm stand sells 38 .

How many are left? ________

Answer:

Given that,

The farm stand has 95 applesÂ for sale.

The farm stand sells 38 apples.

The number of apples left is 95 – 38 = 57.

Therefore the number of apples left is 57.