What is double and near double?
What is double and near double?
Doubles are the addends that are exactly the same. These are addition facts that second graders need to know to add within 20. Near Doubles are those addends that are almost a double fact. Students can easily recall that the double fact for 4+4=8 and by adding one more, they quickly know that 4+5=9.
What is a double strategy?
The Using Doubles strategy involves decomposing one addend to make a double with the other addend. For example 7 + 8 is the same as 7 + 7 plus 1 more. Double ten frames are great for exploring the strategy.
What is a near double number?
A near double is a math fact that is close to a doubles fact. For example, 6+7 is considered a near double because it is close to the doubles fact 6+6. Near doubles could be doubles plus one facts, doubles plus two facts, or doubles minus one facts.
How do you add near doubles in Math Grade 2?
Build on the strategy by doubling the bigger number, write the doubles fact and subtract 2. Streamline the practice of your grade 2 kids with our printable adding near doubles worksheets. Transform any addition equation to a doubles fact and add or subtract 1 or 2 from it to solve another fact.
How do you solve the addition problem with doubles +1?
Apply the doubles +1 strategy by doubling the smaller addend and adding 1 to it. Recall the adding doubles fact for 4 and solve the addition problem in a jiffy!
How many fingers on one hand for adding doubles?
It is always a win-win with our free adding doubles worksheets. Five fingers on one hand and five on the other make it 10. Channel the excitement as 1st grade kids brainstorm for examples of real-life doubles and then follow up with our adding doubles worksheet pdfs. Count on these doubling addition exercises to achieve mental math fluency.
How do you build fluency in adding identical single-digit numbers?
Whether it is adding doubles, completing the doubles facts, adding doubles plus 1, or plus 2, minus 1, or minus 2, or adding near doubles the exercise options are endless to build fluency in adding identical single-digit numbers. Use our answer key for instant evaluation.
