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
63 − 10 = ______
17 + 20 = ______
42 + 10 = ______
61 + 10 = ______
88 + 10 = ______
9 × 10 = ______
32 + 20 = ______
89 − 10 = ______
56 − 10 = ______
81 + 10 = ______
20 + 20 = ______
7 × 10 = ______
63 + 10 = ______
95 − 10 = ______
32 − 10 = ______
81 + 20 = ______
54 + 20 = ______
57 + 20 = ______
4 × 10 = ______
3 × 10 = ______
