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
9 × 10 = ______
27 − 10 = ______
16 + 10 = ______
28 + 10 = ______
70 + 10 = ______
78 − 10 = ______
48 + 10 = ______
8 × 10 = ______
51 + 10 = ______
79 − 10 = ______
59 − 10 = ______
41 + 10 = ______
25 + 20 = ______
37 + 10 = ______
42 − 10 = ______
80 − 10 = ______
47 + 10 = ______
40 − 10 = ______
6 × 10 = ______
99 − 10 = ______
