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
43 + 20 = ______
62 − 10 = ______
71 + 20 = ______
7 × 10 = ______
29 + 20 = ______
88 + 20 = ______
18 + 20 = ______
16 + 20 = ______
28 − 10 = ______
55 − 10 = ______
22 + 10 = ______
56 − 10 = ______
26 + 10 = ______
27 − 10 = ______
46 − 10 = ______
72 + 10 = ______
3 × 10 = ______
83 + 10 = ______
73 + 20 = ______
90 − 10 = ______
