Mentally add or subtract 10 or 100
What is 245 + 10?
245 + 10=255
456 + 213 =
*(669)*
452 ___ 478
>, =, and <
*(<)*
What does the 4 represent in 432?
*(400 or 4 hundreds)*
What comes next: 245, 250, 255, ___?
*(260)*
What is 387 - 100?
387 - 100= 287
732 - 415 =
*(317)*
613 ___ 613
>, =, and <
*(=)*
In 781, how many tens are there?
*(8 tens)*
Count by 100s starting from 300 (next number).
*(400)*
Add 10 to 172.
Add 10 to 172=182
289 + 156 =
*(445)*
825 ___ 792
>, =, and <
*(>)*
Which digit is in the hundreds place in 956?
*(9)*
What number comes after 680 when counting by 10s?
*(690)*
Subtract 100 from 540.
540-100=440
521 - 238 =
*(283)*
301 ___ 310
>, =, and <
*(<)*
Break apart 623 into hundreds, tens, and ones.
*(600 + 20 + 3)*
Skip count by 5s: 45, 50, 55, ___?
*(60)*
What is 639 + 100?
639 + 100= 739
640 + 358 =
*(998)*
749 ___ 749
>, =, and <
*(=)*
What number has 5 hundreds, 3 tens, and 7 ones?
*(537)*
Starting at 150, count by 100s two more times.
*(250, 350)*