## Why parents choose SplashLearn for their first graders?

• #### Personalised Learning

Intelligently adapts to the way each child learns

• #### Fun Rewards

Get coins for each correct answer and redeem coins for virtual pets

• #### Actionable Reports

Monitor progress with iPhone app, weekly emails and detailed dashboards

8.

# Subtract 8 from a Number

First grade requires students to internalize subtraction facts involving 1 digit numbers. These facts are building blocks for subtraction of greater numbers using the standard algorithm. Subtract 8 from a Number Worksheet focuses on practicing subtracting 8 (minus 8) from numbers within 20.

### Common Core Alignment

1.OA.6Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 â€” 4 = 13 â€” 3 â€” 1 = 10 â€” 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 â€” 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).