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
7 × 10 = ______
4 × 10 = ______
60 − 10 = ______
6 × 10 = ______
29 + 10 = ______
9 × 10 = ______
75 + 10 = ______
60 + 20 = ______
74 − 10 = ______
72 − 10 = ______
8 × 10 = ______
64 + 20 = ______
70 − 10 = ______
77 − 10 = ______
38 + 20 = ______
74 + 10 = ______
80 − 10 = ______
62 + 10 = ______
56 + 20 = ______
89 + 10 = ______
