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
89 + 10 = ______
48 − 10 = ______
86 + 20 = ______
69 − 10 = ______
64 + 20 = ______
54 + 20 = ______
18 + 10 = ______
53 − 10 = ______
7 × 10 = ______
8 × 10 = ______
47 + 10 = ______
36 − 10 = ______
6 × 10 = ______
3 × 10 = ______
16 + 10 = ______
56 − 10 = ______
84 − 10 = ______
77 + 20 = ______
76 + 10 = ______
9 × 10 = ______
