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 = ______
41 + 10 = ______
96 − 10 = ______
3 × 10 = ______
81 + 20 = ______
89 + 20 = ______
76 + 10 = ______
9 × 10 = ______
33 − 10 = ______
85 + 10 = ______
77 − 10 = ______
13 + 20 = ______
78 + 20 = ______
14 + 20 = ______
5 × 10 = ______
45 − 10 = ______
31 − 10 = ______
24 + 20 = ______
74 + 20 = ______
56 − 10 = ______
