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
78 + 10 = ______
76 + 10 = ______
8 × 10 = ______
66 − 10 = ______
14 + 10 = ______
67 + 10 = ______
28 + 10 = ______
48 − 10 = ______
73 − 10 = ______
50 + 20 = ______
7 × 10 = ______
88 − 10 = ______
3 × 10 = ______
41 + 10 = ______
73 + 10 = ______
77 − 10 = ______
9 × 10 = ______
38 − 10 = ______
88 + 20 = ______
20 + 20 = ______
