Say the answer, then write it. If it doesn't come quickly, show it on fingers and count. Adding or taking away 0 leaves the number the same.
plusthe + sign: add
minusthe − sign: take away
equalsthe = sign: is the same as
facta short sum you know by heart
Watch for: Adding when the sign says take away: 4 − 3 = 7. Answering 0 when a 0 is added or taken away: 3 + 0 = 0. Being one off by counting the first number again when counting on.
At home: Use one hand: show 5 fingers, fold 2 down, and ask how many are up. Keep it quick and playful, a few facts at a time.
Sample sheet and answer key
Freddie's Frog Pond
Kindergarten · Facts within 5 · K.OA.A.5
NameDate
Freddie the frog lives in a busy pond full of bugs, lily pads and friends. Solve each problem to help Freddie out!
Freddie can only land on lily pads that make 5. Color them, then draw the path home.
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.