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
39 − 10 = ______
8 × 10 = ______
71 − 10 = ______
37 + 20 = ______
85 + 10 = ______
90 − 10 = ______
57 − 10 = ______
51 + 20 = ______
87 + 10 = ______
75 − 10 = ______
41 + 10 = ______
56 − 10 = ______
50 + 10 = ______
31 + 10 = ______
19 + 10 = ______
40 − 10 = ______
49 + 20 = ______
54 + 20 = ______
96 − 10 = ______
7 × 10 = ______
