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What is the midpoint of 800 and 900?. Huh?. In this lesson you will learn how to find the midpoint between two numbers by using a number line. Counting by 10’s. The pattern stays the same even with bigger numbers. 300. 320. 360. 380. 400. 340. 310. 330. 350. 370. 390.
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In this lesson you will learn how to find the midpoint between two numbers by using a number line.
Counting by 10’s. The pattern stays the same even with bigger numbers. 300 320 360 380 400 340 310 330 350 370 390
Counting by 100’s. Although the hundreds changed, the thousands stayed the same. 1,000 1,200 1,400 1,600 1,800 2,000 1,500 1,100 1,300 1,900 1,700
I I I I I I I I I l l 151 152 153 154 155 156 157 158 159 150 160 Benchmark Numbers I I I I I I I I I l l 110 120 130 140 150 160 170 180 190 100 200
Reading a Number Line 11 12 13 14 15 16 17 18 19 110 120 130 140 150 160 170 180 190 1100 1200 1300 1400 1500 1600 1700 1800 1900 l l l l l l l l l l l l l l l l l l l l l l l l l l l 10 1000 100 20 200 2000
Thinking that the increments on a number line always signify counting by ones. 310 320 330 340 350 360 370 380 390 l l l l l l l l l 300 400
The midpoint marks the middle of the line. What is a midpoint? I I I I I I I I I l l 410 420 430 440 450 460 470 480 490 500 400 Benchmark Numbers
Find the midpoint of 230 and 240. l l I I I I I I I I I 231 232 233 234 235 236 237 238 239 230 240 Midpoint
Do I count by 10’s or 100’s when finding the midpoint of 800 and 900? I I I I I I I I I l l 810 820 830 840 850 860 870 880 890 800 900
In this lesson you have learned how to find the midpoint between two numbers by using a number line.
What is the midpoint of 700 and 800? I I I I I I I I I l l 710 720 730 740 750 760 770 780 790 700 800
l l I I I I I I I I I 100 200 Using the number line above. Find the midpoint of 100 and 200. Where would 123, 178, and 190 be placed on the number line. Are the numbers above or below the midpoint?
Use a ruler to draw a number line with the benchmark numbers of 1,000 and 2,000. What are the increments between these numbers? What is the midpoint of 1,000 and 2,000?
What is the midpoint of 140 and 150? What is the midpoint of 200 and 300?