This material engages in solving subtraction problems where both numbers are less than 20, presented either orally or through visual aids. By tackling these arithmetic challenges, teachers will facilitate to the learners on how to sharpen their subtraction skills, reinforce their understanding of numerical relationships, and enhance their ability to perform calculations within the range of 1 to 19. This activity aims to boost their mental math abilities, improve problem-solving strategies, and deepen their proficiency in subtraction operations.
Objective
To find the missing number in addition or subtraction sentences.
Curriculum Information
Education Type
K to 12
Grade Level
Grade 1
Learning Area
Mathematics
Content/Topic
Numbers and Number Sense
Patterns and algebra
Intended Users
Educators
Competencies
Constructs equivalent number expression using addition and subtraction
Adds mentally two to three one digit numbers with sums up to 18 using appropriate strategies
