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
6 × 10 = ______
51 + 10 = ______
92 − 10 = ______
5 × 10 = ______
25 + 20 = ______
45 + 20 = ______
9 × 10 = ______
40 + 20 = ______
74 + 20 = ______
99 − 10 = ______
14 + 20 = ______
38 − 10 = ______
96 − 10 = ______
37 + 20 = ______
44 + 10 = ______
47 − 10 = ______
89 + 20 = ______
95 − 10 = ______
15 + 20 = ______
27 + 10 = ______
