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 = ______
32 − 10 = ______
75 − 10 = ______
5 × 10 = ______
54 − 10 = ______
6 × 10 = ______
60 − 10 = ______
99 − 10 = ______
64 − 10 = ______
27 + 20 = ______
84 − 10 = ______
57 + 10 = ______
86 + 20 = ______
2 × 10 = ______
36 + 10 = ______
42 + 20 = ______
52 − 10 = ______
48 + 20 = ______
14 + 20 = ______
14 + 10 = ______
