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
8 × 10 = ______
85 + 10 = ______
70 + 10 = ______
6 × 10 = ______
89 + 20 = ______
59 − 10 = ______
27 − 10 = ______
64 + 10 = ______
70 − 10 = ______
51 + 10 = ______
49 + 20 = ______
4 × 10 = ______
72 + 10 = ______
11 + 20 = ______
26 − 10 = ______
85 + 20 = ______
56 + 10 = ______
68 + 20 = ______
81 − 10 = ______
9 × 10 = ______
