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
88 + 20 = ______
7 × 10 = ______
40 + 10 = ______
36 − 10 = ______
29 + 20 = ______
57 − 10 = ______
99 − 10 = ______
55 + 20 = ______
77 + 20 = ______
8 × 10 = ______
3 × 10 = ______
38 − 10 = ______
30 − 10 = ______
71 + 20 = ______
80 + 10 = ______
83 + 20 = ______
55 + 10 = ______
4 × 10 = ______
5 × 10 = ______
79 + 20 = ______
