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
68 − 10 = ______
48 + 20 = ______
34 + 20 = ______
6 × 10 = ______
89 − 10 = ______
29 + 20 = ______
67 − 10 = ______
60 − 10 = ______
1 × 10 = ______
45 + 10 = ______
25 + 20 = ______
18 + 10 = ______
41 − 10 = ______
36 + 20 = ______
7 × 10 = ______
72 − 10 = ______
42 + 10 = ______
84 + 20 = ______
50 − 10 = ______
88 + 20 = ______
