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
48 − 10 = ______
86 + 20 = ______
47 − 10 = ______
73 + 10 = ______
30 − 10 = ______
9 × 10 = ______
75 + 20 = ______
50 + 20 = ______
11 + 20 = ______
28 − 10 = ______
98 − 10 = ______
67 + 10 = ______
8 × 10 = ______
5 × 10 = ______
3 × 10 = ______
60 − 10 = ______
72 + 20 = ______
12 + 10 = ______
2 × 10 = ______
79 − 10 = ______
