Basic Facts
7 + 7 =
#5 A: 384 rounded to the nearest 10 is 380.
Did you say...YES! The one's place is below 5!
Finish the rest with your group. Be ready to share.
RANDOM: 104 + 243 =
*Use your white board.
Was your sum 347?
RANDOM: 287 - 123 =
*Use your whiteboard.
Did you find the difference of 164?
#9: Clark scores 146 points bowling. Kia scores 179 points bowling. Tell us how many points they scored in all.
Did you find the sum of 325?
Did you say 18?
#7: Name the two tens between 163. (Benchmark numbers)
Did you say 160 and 170? (Benchmark numbers)
#4: 161 + 127 =
Did you get the sum of 288?
RANDOM: 864 - 342 =
*Use your whiteboard.
Did you find the difference of 522?
#1: 650 - 583 =
Did you find the answer of 67?
OH 67!
11 + 7 =
Did you say 18?
#2: List 3 numbers that round to 540 when rounded to the nearest TEN.
Did you answer with: 535, 536, 537, 538, 539, 540, 541, 542, 543, 544 ?
RANDOM: 638 + 213 =
*Use your whiteboard.
Did you find the sum of 851?
#3: 794 - 432 =
Did you get the difference of 362?
#6: Break apart numbers to add 563 + 274 =
Did you find the answer of 837?
200 - 10 =
Did you say 190?
RANDOM: What benchmark numbers for the nearest 10 are between 756?
Nearest 100?
*Use your whiteboard.
Did you say...
Nearest 10: 750 and 760
Nearest 100: 700 and 800
13 Part 1 : Show 243 + 158 in word form and base tens.
2 hundreds + 1 hundred = 3 hundreds
4 tens + 5 tens = 9 tens
3 ones + 8 ones = 11 ones
*Teacher will check Base tens
#12: The difference of the equation is written using hundreds, tens, and ones.
526 - 397 = 1 hundred + ___ tens + ____ ones
Did you say...
1 hundred + 2 tens + 9 ones
#11 The sum of the equation below is written using hundreds, tens, and ones.
437 + 286 = ____ hundreds 11 tens ____ ones
Did you find...6 Hundreds 11 Tens 13 Ones?
500 - 1 =
Did you say 499?
#10: There are 635 students at Lucas School. The principal rounds to tell people how many students are at Lucas School. Round to the nearest 10. Round to the nearest 100.
Did you say...
640 students rounded to the nearest 10?
600 students rounded to the nearest 100?
#13 Part 2: Show 243 + 158 in an algorithm and expanded form.
243 + 158 =
11
90
300
200 + 100 =300 ... 40 + 50 = 90 ... 3 + 8 = 11
RANDOM:
The difference of the equation is written using hundreds, tens, and ones.
532 - 397 = ___ hundred + ___ tens + ____ ones
*Use your whiteboard.
1 hundred + 3 tens + 5 ones
(One option)
#8: Add on to subtract
134 + 6 + _____ + 1 = 201, so 201 - 134 = _____
Did you find...
First blank: 60
Second blank: 67