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
50 + 20 = ______
7 × 10 = ______
11 + 20 = ______
29 + 10 = ______
21 + 20 = ______
16 + 20 = ______
60 − 10 = ______
2 × 10 = ______
35 + 10 = ______
4 × 10 = ______
74 − 10 = ______
54 − 10 = ______
49 + 10 = ______
48 − 10 = ______
54 + 20 = ______
36 − 10 = ______
40 + 10 = ______
32 − 10 = ______
87 − 10 = ______
28 + 20 = ______
