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
92 − 10 = ______
25 + 20 = ______
88 + 20 = ______
3 × 10 = ______
72 − 10 = ______
56 − 10 = ______
11 + 10 = ______
5 × 10 = ______
9 × 10 = ______
8 × 10 = ______
7 × 10 = ______
41 − 10 = ______
89 + 10 = ______
34 + 20 = ______
61 + 20 = ______
11 + 20 = ______
64 + 10 = ______
29 + 20 = ______
57 + 10 = ______
67 − 10 = ______
