Keep the tens as they are. Take the small number away from the ones: 74 − 3 is 7 tens and 4 − 3 ones, which is 71.
tensgroups of ten
onessingle units, less than a ten
subtracttake away to find what is left
differencethe answer when you subtract
Watch for: Taking the ones away from the tens: 74 − 3 = 44. Crossing out a whole rod instead of single cubes. Adding the ones instead of taking away: 29 − 8 = 27.
At home: Show 5 dimes and 8 pennies (58¢). Spend 5 pennies on a pretend snack and ask how much is left, and which coins didn't change.
Sample sheet and answer key
Freddie's Frog Pond
Grade 1 · Taking away ones · 1.NOS.E.13
NameDate
Freddie the frog lives in a busy pond full of bugs, lily pads and friends. Solve each problem to help Freddie out!
Take away ones
Cross out the ones you take away. How many are left?
Freddie has 38 water bugs. Freddie gives 6 to Moss. How many water bugs does Freddie have left?
38 − 6 = 32
32water bugs
2
Moss has 48 flies. Freddie has 8 fewer than Moss. How many flies does Freddie have?
48 − 8 = 40
40flies
Answer key
New problems every time, three levels (gentle, core and stretch), themes to pick from, a second page if you want one. Each sheet comes with an answer key and a one-page guide for grown-ups.
