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
6 × 10 = ______
36 + 20 = ______
5 × 10 = ______
56 − 10 = ______
58 + 20 = ______
81 + 10 = ______
66 + 20 = ______
98 − 10 = ______
57 + 20 = ______
56 + 20 = ______
1 × 10 = ______
45 + 10 = ______
72 − 10 = ______
46 − 10 = ______
89 + 20 = ______
62 + 10 = ______
14 + 20 = ______
26 − 10 = ______
88 + 10 = ______
34 − 10 = ______
