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
4 × 10 = ______
1 × 10 = ______
2 × 10 = ______
97 − 10 = ______
60 + 10 = ______
69 + 10 = ______
56 + 20 = ______
74 − 10 = ______
84 + 10 = ______
22 + 20 = ______
81 + 10 = ______
9 × 10 = ______
8 × 10 = ______
83 + 10 = ______
95 − 10 = ______
48 + 10 = ______
6 × 10 = ______
84 − 10 = ______
49 + 10 = ______
23 + 20 = ______
