Question

3
10 in all
______ are left.
4
5 in all
______ are left.
5
9 in all
______ are left.
6
______ are left.
directions have students listen to the story, and then do all of the following to find how many are left: give an explanation of a mental image, use objects to act it out, and hold up fingers. ask them to write the number to tell how many are left. 10 fingers are in the air. 3 are put down. how many fingers are left? 5 fingers are in the air. 5 are put down. how many fingers are left? 9 marbles are in a jar. some are taken out. how many marbles are left? higher order thinking have students draw 8 marbles. have them mark xs on some of them (taken out). how many marbles are left? then write the number to tell how many marbles are left.
topic 7 | lesson 1

Explanation:

Step1: Solve problem 3

Total fingers = 10, put down = 8.
$10 - 8 = 2$

Step2: Solve problem 4

Total fingers = 5, put down = 5.
$5 - 5 = 0$

Step3: Solve problem 5

Total marbles = 9, taken out = 4.
$9 - 4 = 5$

Step4: Solve problem 6

Total marbles = 8, mark X on 3.
$8 - 3 = 5$

Answer:

1. 2 are left.
2. 0 are left.
3. 5 are left.
4. 5 are left.