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
1 × 10 = ______
7 × 10 = ______
6 × 10 = ______
2 × 10 = ______
73 + 20 = ______
65 + 20 = ______
80 + 10 = ______
64 − 10 = ______
89 + 10 = ______
51 + 10 = ______
67 + 10 = ______
9 × 10 = ______
22 − 10 = ______
42 + 20 = ______
12 + 20 = ______
62 + 10 = ______
61 − 10 = ______
38 − 10 = ______
35 − 10 = ______
21 − 10 = ______
