Practice with the help of **Spectrum Math Grade 1 Answer Key Chapter 3 Pretest** regularly and improve your accuracy in solving questions.

## Spectrum Math Grade 1 Chapter 3 Pretest Answers Key

**Add.**

Answer:

Given numbers are 5 and 6.

When both are added it generates the result 11 as shown Below.

Answer:

Given numbers are 9 and 9.

When both are added it generates the result 18 as shown Below.

Answer:

Given numbers are 8 and 7.

When both are added it generates the result 15 as shown Below.

Answer:

Given numbers are 6 and 8.

When both are added it generates the result 14 as shown Below.

Answer:

Given numbers are 4 and 9.

When both are added it generates the result 13 as shown Below.

Answer:

Given numbers are 7 and 5.

When both are added it generates the result 12 as shown Below.

Answer:

Given numbers are 8 and 9.

When both are added it generates the result 17 as shown Below.

Answer:

Given numbers are 8 and 8.

When both are added it generates the result 16 as shown Below.

Answer:

Given numbers are 7 and 9.

When both are added it generates the result 16 as shown Below.

Answer:

Given numbers are 8 and 5.

When both are added it generates the result 13 as shown Below.

Answer:

Given numbers are 6 and 6.

When both are added it generates the result 12 as shown Below.

Answer:

Given numbers are 7 and 4.

When both are added it generates the result 11 as shown Below.

Answer:

Given numbers are 9 and 6.

When both are added it generates the result 15 as shown Below.

Answer:

Given numbers are 7 and 6.

When both are added it generates the result 13 as shown Below.

Answer:

Given numbers are 7 and 7.

When both are added it generates the result 14 as shown Below.

Answer:

Given numbers are 11 and 8.

When both are added it generates the result 19 as shown Below.

Answer:

Given numbers are 12 and 7.

When both are added it generates the result 19 as shown Below.

Answer:

Given numbers are 11 and 9.

When both are added it generates the result 20 as shown Below.

Subtract.

Answer:

Given numbers are 15 and 7.

When 7 is subtracted from the number 15 the result obtained is 8 as shown Below

Answer:

Given numbers are 13 and 9.

When 9 is subtracted from the number 13 the result obtained is 4 as shown Below

Answer:

Given numbers are 17 and 8.

When 8 is subtracted from the number 17 the result obtained is 9 as shown Below

Answer:

Given numbers are 18 and 7.

When 7 is subtracted from the number 18 the result obtained is 11 as shown Below

Answer:

Given numbers are 12 and 6.

When 6 is subtracted from the number 12 the result obtained is 6 as shown Below

Answer:

Given numbers are 11 and 4.

When 4 is subtracted from the number 11 the result obtained is 7 as shown Below

Answer:

Given numbers are 19 and 7.

When 7 is subtracted from the number 19 the result obtained is 12 as shown Below

Answer:

Given numbers are 13 and 6.

When 6 is subtracted from the number 13 the result obtained is 7 as shown Below

Answer:

Given numbers are 18 and 9.

When 9 is subtracted from the number 18 the result obtained is 9 as shown Below

Answer:

Given numbers are 15 and 6.

When 6 is subtracted from the number 15 the result obtained is 9 as shown Below

Answer:

Given numbers are 16 and 8.

When 8 is subtracted from the number 16 the result obtained is 8 as shown Below

Answer:

Given numbers are 14 and 8.

When 8 is subtracted from the number 14 the result obtained is 6 as shown Below

Answer:

Given numbers are 12 and 9.

When 9 is subtracted from the number 12 the result obtained is 3 as shown Below

Answer:

Given numbers are 14 and 6.

When 6 is subtracted from the number 14 the result obtained is 8 as shown Below

Answer:

Given numbers are 17 and 9.

When 9 is subtracted from the number 17 the result obtained is 8 as shown Below

Answer:

Given numbers are 16 and 9.

When 9 is subtracted from the number 16 the result obtained is 7 as shown Below

Answer:

Given numbers are 20 and 8.

When 8 is subtracted from the number 20 the result obtained is 12 as shown Below

Answer:

Given numbers are 11 and 5.

When 5 is subtracted from the number 11 the result obtained is 6 as shown Below

**Solve each problem.**

There are 8 in a jar.

There are 9 on the table.

How many in all? _______

Answer:

Number of Â in a jarÂ = 8

Number ofÂ Â on the table = 9

Total Â present on both jar and Table = 8 + 9 = 17

There are 12 .

5 swim away.

How many are left? _______

Answer:

Total number ofÂ Â present = 12

Number of Â Swim away = 5

Number of Â left = 12 – 5 = 7

There are 20 on the shelf.

9 roll off.

How many are still on the shelf? _______

Answer:

Total number ofÂ Â Â present = 20

Number ofÂ Â that are roll off = 9

Number of Â which are on the shell = 20 – 9 = 11

There are 6

There are

How many shoes in all? _______

Answer:

Number ofÂ Â present = 6

Number ofÂ present = 1

Total number of shoe present in all = 1

I have 15 .

8 are dirty.

How many are clean? _______

Answer:

Number of Â present =Â 15

Number of Â which are dirty = 8

Number of Â which are clean = 15 – 8 = 7