Grade 1 Math · Level 3, Place Value to 120
Compare Two-Digit Numbers
How the lesson starts: Compare Two-Digit Numbers
Hungry Chomp
Snap, snap! This is Chomp the alligator. Chomp is always hungry. Chomp's mouth opens to the bigger number. Let's help Chomp pick!
Tens first
Here are 43 and 38. Look at the tens first. 43 has 4 tens. 38 has only 3 tens. 4 tens is more! So 43 > 38.
Same tens? Ones!
Now 62 and 67. Both have 6 tens. A tie! So look at the ones. 2 ones is less than 7 ones. So 62 < 67. Watch out! The mouth opens to 67.