Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
3 × 10 = ______
34 − 10 = ______
2 × 10 = ______
9 × 10 = ______
34 + 20 = ______
56 + 20 = ______
49 + 20 = ______
56 − 10 = ______
1 × 10 = ______
29 + 10 = ______
25 − 10 = ______
4 × 10 = ______
72 + 20 = ______
84 − 10 = ______
61 + 10 = ______
5 × 10 = ______
77 + 20 = ______
14 + 10 = ______
49 − 10 = ______
28 + 10 = ______
