**Addition, Subtraction To 20 Activities, Kids, Kindergarten Class/Lesson Ideas, Pinterest, Build Math, Math Facts, Word Problems** - Three. Ask the students if they don't forget a way to resolve the problem. Ask if it's far an addition or subtraction trouble. 4. Ask the students to help solve the trouble. Make sure the students kingdom how to finish the hassle little by little. Five. After completing the trouble, tell the students that they may be reviewing the way to add and subtract three digit numbers. Additionally, inform them that they may be participating in a amusing pastime to complete addition and subtraction problems. Massive idea assertion the bottom-ten variety machine is a way to organize, represent and examine numbers the use of organizations of ten and vicinity price. Essential questions how will we upload two-digit numbers collectively? ?? how do we upload 3-digit numbers together? ?? how do we subtract two-digit numbers? ?? how will we subtract 3-digit numbers? Key vocabulary double digits 3 digits addition subtraction sum difference 1. Write a two-digit addition problem with two numbers that don’t consist of zeroes on the chalkboard. 2. Ask the students how to complete the problem grade by grade. Make sure that the stairs are thoroughly defined. Three. Write an addition hassle with two three-digit numbers, such as 673 236, at the chalkboard to complete with the students. Four. Ask the scholars the first step in completing the addition hassle. Speak approximately regrouping within the trouble with the scholars. Five. Write every other three-digit addition trouble on the chalkboard. 6. Ask the students how to complete the problem. 7. Write a subtraction hassle with three-digit numbers, along with 985-672, at the chalkboard to finish with the scholars. 8. Write any other 3-digit subtraction problem, which includes 855-475, at the chalkboard to finish with the scholars. Talk about regrouping within the hassle with the students. 9. Ask the scholars how to complete the hassle, little by little. . 10. Ask desk institution 1 to get their whiteboards, paper towels and dry erase markers for his or her pastime and take a seat go into reverse at their seats. Next, i can ask table institution 2, table group three, desk organization four and desk organization five to get their substances and sit go into reverse at their seats. 11. Write one three-digit addition issues on the chalkboard for the scholars to complete on their whiteboards. 12. Stroll across the room and observe which college students have the right solution on their whiteboards. Thirteen. Positioned tally marks beside the names of the scholars who have the right solution to the addition hassle at the sheet of paper with all the college students’ names. 14. Cross over the answer to the addition hassle with the students. 15. Repeat steps eleven-14 six greater instances with the students. Sixteen. Give students one 3-digit subtraction trouble to finish on their whiteboards. 17. Stroll around the room and have a look at which students have the ideal solution on their whiteboards. 18. Placed tally marks beside the names of the scholars who've the correct solution to the subtraction hassle at the sheet of paper with all the college students’ names. 19. Go over the subtraction hassle with the students. 20. Repeat steps 16-19 six greater instances with the students.