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
57 + 10 = ______
66 + 10 = ______
50 + 20 = ______
49 + 10 = ______
7 × 10 = ______
81 − 10 = ______
35 + 10 = ______
76 + 10 = ______
73 + 10 = ______
9 × 10 = ______
92 − 10 = ______
43 − 10 = ______
37 + 20 = ______
39 + 10 = ______
70 − 10 = ______
58 − 10 = ______
8 × 10 = ______
6 × 10 = ______
74 + 10 = ______
5 × 10 = ______
