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
75 − 10 = ______
34 + 10 = ______
80 − 10 = ______
44 + 10 = ______
25 − 10 = ______
5 × 10 = ______
6 × 10 = ______
23 + 20 = ______
70 + 20 = ______
71 + 20 = ______
43 + 20 = ______
44 − 10 = ______
83 − 10 = ______
83 + 20 = ______
60 + 10 = ______
74 − 10 = ______
51 + 10 = ______
48 + 10 = ______
88 + 20 = ______
41 − 10 = ______
