Start on the first number, not on 0. Hop once for each one you add or take away, then read the number you land on. To add, starting from the bigger number is quicker.
count onstart at a number and count forward
count backstart at a number and count backward
hopone jump along the number line
number linenumbers in order along a line
Watch for: Counting the starting number as the first hop, so the answer is 1 off. Hopping forward on a take-away. Counting on from the small number: 1 + 11 is quicker as 11 + 1.
At home: Chalk a number line from 0 to 20 on the sidewalk. Call out 12 + 3 or 15 − 2 and let your child hop it.
Sample sheet and answer key
Freddie's Frog Pond
Grade 1 · Counting on and back · 1.OA.C.5
NameDate
Freddie the frog lives in a busy pond full of bugs, lily pads and friends. Solve each problem to help Freddie out!
Count on, count back
Start with the big number and count 1, 2 or 3.
3 + 15 =11 − 3 =1 + 12 =9 − 1 =3 + 7 =14 − 2 =
Hop along
Start on the first number. Hop forward to add, back to take away.
16 + 2 =
10 − 2 =
1 + 2 =
Sheet
Freddie's Frog Pond
Grade 1 · Counting on and back · 1.OA.C.5
Answer key
Freddie the frog lives in a busy pond full of bugs, lily pads and friends. Solve each problem to help Freddie out!
Start on the first number. Hop forward to add, back to take away.
16 + 2 =18
10 − 2 =8
1 + 2 =3
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.