Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
Here is a collection of our common core aligned worksheets for core standard 1.NBT.C.4.
A brief description of the worksheets is on each of the worksheet widgets. Click on the images to view, download, or print them. All worksheets are free for individual and non-commercial use.
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Write one more or one less than each number.
Core Standard: 1.NBT.C.4
Brush up your basic addition skills.
Core Standard: 1.NBT.C.4
Write a number one more and one less than a given number.
Core Standard: 1.NBT.C.4
Write ten more or ten less than each given number.
Core Standard: 1.NBT.C.4
Use a hundred chart to answer each question.
Core Standard: 1.NBT.C.4
Use patterns on a hundred chart to skip count by twos.
Core Standard: 1.NBT.C.4
Fall is here! Practice addition ( 2-digits to 1-digit) and revise your even and odd number sense.
Core Standard: 1.NBT.C.4
Practice horizontal addition in this Valentine's special worksheet.
Core Standard: 1.NBT.C.4
Win the game of tic tac toe and sharpen your basic single digit addition skills.
Core Standard: 1.NBT.C.4
What is Zucchini's favorite game? Add the numbers on this worksheet to solve the riddle!
Core Standard: 1.NBT.C.4
Sharpen you mental math : Practice adding multiples of ten.
Core Standard: 1.NBT.C.4