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
88 + 20 = ______
72 + 10 = ______
6 × 10 = ______
80 − 10 = ______
11 + 10 = ______
8 × 10 = ______
98 − 10 = ______
48 − 10 = ______
85 + 20 = ______
86 + 20 = ______
3 × 10 = ______
73 + 20 = ______
53 + 20 = ______
95 − 10 = ______
22 − 10 = ______
52 + 10 = ______
34 + 20 = ______
24 − 10 = ______
58 + 10 = ______
84 − 10 = ______
