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
91 − 10 = ______
6 × 10 = ______
99 − 10 = ______
57 + 20 = ______
52 + 20 = ______
11 + 20 = ______
58 − 10 = ______
84 + 20 = ______
9 × 10 = ______
86 + 10 = ______
50 − 10 = ______
21 + 10 = ______
67 − 10 = ______
42 + 10 = ______
60 + 20 = ______
19 + 20 = ______
76 + 20 = ______
5 × 10 = ______
83 + 20 = ______
75 − 10 = ______
